403444023402 has 48 divisors (see below), whose sum is σ = 939272745312. Its totient is φ = 115190157600.

The previous prime is 403444023401. The next prime is 403444023421. The reversal of 403444023402 is 204320444304.

403444023402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 403444023402.

It is not an unprimeable number, because it can be changed into a prime (403444023401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46273 + ... + 899460.

It is an arithmetic number, because the mean of its divisors is an integer number (19568182194).

Almost surely, 2^403444023402 is an apocalyptic number.

403444023402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

403444023402 is an abundant number, since it is smaller than the sum of its proper divisors (535828721910).

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

403444023402 is a wasteful number, since it uses less digits than its factorization.

403444023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947203 (or 947196 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 403444023402 its reverse (204320444304), we get a palindrome (607764467706).

The spelling of 403444023402 in words is "four hundred three billion, four hundred forty-four million, twenty-three thousand, four hundred two".