2402040042420 has 96 divisors (see below), whose sum is σ = 6960655537920. Its totient is φ = 618187637760.

The previous prime is 2402040042379. The next prime is 2402040042427. The reversal of 2402040042420 is 242400402042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402040042427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3722464 + ... + 4319816.

It is an arithmetic number, because the mean of its divisors is an integer number (72506828520).

Almost surely, 2^{2402040042420} is an apocalyptic number.

2402040042420 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 2402040042420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3480327768960).

2402040042420 is an abundant number, since it is smaller than the sum of its proper divisors (4558615495500).

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

2402040042420 is a wasteful number, since it uses less digits than its factorization.

2402040042420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599705 (or 599703 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 2402040042420 its reverse (242400402042), we get a palindrome (2644440444462).

The spelling of 2402040042420 in words is "two trillion, four hundred two billion, forty million, forty-two thousand, four hundred twenty".