202423403401040 has 80 divisors (see below), whose sum is σ = 475524644474880. Its totient is φ = 80128165785600.

The previous prime is 202423403401039. The next prime is 202423403401127. The reversal of 202423403401040 is 40104304324202.

202423403401040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 202423403400994 and 202423403401012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95791865 + ... + 97882215.

It is an arithmetic number, because the mean of its divisors is an integer number (5944058055936).

Almost surely, 2^{202423403401040} is an apocalyptic number.

202423403401040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202423403401040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237762322237440).

202423403401040 is an abundant number, since it is smaller than the sum of its proper divisors (273101241073840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202423403401040 is a wasteful number, since it uses less digits than its factorization.

202423403401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102940 (or 2102934 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 202423403401040 its reverse (40104304324202), we get a palindrome (242527707725242).

The spelling of 202423403401040 in words is "two hundred two trillion, four hundred twenty-three billion, four hundred three million, four hundred one thousand, forty".