402521041444104 has 144 divisors (see below), whose sum is σ = 1242656914458960. Its totient is φ = 121976073093600.

The previous prime is 402521041444037. The next prime is 402521041444111. The reversal of 402521041444104 is 401444140125204.

402521041444104 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 2 + 104 + 1 + 444 + 104 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 855376962 + ... + 855847409.

It is an arithmetic number, because the mean of its divisors is an integer number (8629561905965).

Almost surely, 2^{402521041444104} is an apocalyptic number.

402521041444104 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402521041444104 is an abundant number, since it is smaller than the sum of its proper divisors (840135873014856).

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

402521041444104 is a wasteful number, since it uses less digits than its factorization.

402521041444104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711224414 (or 1711224387 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 36.

Adding to 402521041444104 its reverse (401444140125204), we get a palindrome (803965181569308).

The spelling of 402521041444104 in words is "four hundred two trillion, five hundred twenty-one billion, forty-one million, four hundred forty-four thousand, one hundred four".