401735380625 has 20 divisors (see below), whose sum is σ = 503142080496. Its totient is φ = 320662602000.

The previous prime is 401735380621. The next prime is 401735380633. The reversal of 401735380625 is 526083537104.

It is not a de Polignac number, because 401735380625 - 2² = 401735380621 is a prime.

It is a super-2 number, since 2×401735380625² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401735380621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 448607 + ... + 1002356.

Almost surely, 2^401735380625 is an apocalyptic number.

It is an amenable number.

401735380625 is a deficient number, since it is larger than the sum of its proper divisors (101406699871).

401735380625 is an equidigital number, since it uses as much as digits as its factorization.

401735380625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451426 (or 1451411 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 401735380625 in words is "four hundred one billion, seven hundred thirty-five million, three hundred eighty thousand, six hundred twenty-five".