420401757402 has 48 divisors (see below), whose sum is σ = 995584374720. Its totient is φ = 127149921600.

The previous prime is 420401757401. The next prime is 420401757427. The reversal of 420401757402 is 204757104024.

420401757402 is a `hidden beast` number, since 42 + 0 + 40 + 1 + 7 + 574 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (420401757401) 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, 1934502 + ... + 2140817.

It is an arithmetic number, because the mean of its divisors is an integer number (20741341140).

Almost surely, 2^420401757402 is an apocalyptic number.

420401757402 is an abundant number, since it is smaller than the sum of its proper divisors (575182617318).

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

420401757402 is a wasteful number, since it uses less digits than its factorization.

420401757402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075859 (or 4075856 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The spelling of 420401757402 in words is "four hundred twenty billion, four hundred one million, seven hundred fifty-seven thousand, four hundred two".