401843690634402 has 32 divisors (see below), whose sum is σ = 893711394428160. Its totient is φ = 133839084592080.

The previous prime is 401843690634401. The next prime is 401843690634457. The reversal of 401843690634402 is 204436096348104.

401843690634402 is a `hidden beast` number, since 4 + 0 + 1 + 84 + 3 + 69 + 0 + 63 + 440 + 2 = 666.

It is a super-2 number, since 2×401843690634402² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (401843690634401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3022496413 + ... + 3022629360.

It is an arithmetic number, because the mean of its divisors is an integer number (27928481075880).

Almost surely, 2^{401843690634402} is an apocalyptic number.

401843690634402 is an abundant number, since it is smaller than the sum of its proper divisors (491867703793758).

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

401843690634402 is a wasteful number, since it uses less digits than its factorization.

401843690634402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045127015 (or 6045127009 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 54.

The spelling of 401843690634402 in words is "four hundred one trillion, eight hundred forty-three billion, six hundred ninety million, six hundred thirty-four thousand, four hundred two".