401539260 has 48 divisors (see below), whose sum is σ = 1135917216. Its totient is φ = 105971712.

The previous prime is 401539223. The next prime is 401539273. The reversal of 401539260 is 62935104.

It is a super-2 number, since 2×401539260² = 322467554642695200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28677 + ... + 40316.

It is an arithmetic number, because the mean of its divisors is an integer number (23664942).

Almost surely, 2^401539260 is an apocalyptic number.

It is an amenable number.

401539260 is an abundant number, since it is smaller than the sum of its proper divisors (734377956).

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

401539260 is a wasteful number, since it uses less digits than its factorization.

401539260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69102 (or 69100 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 401539260 is about 20038.4445504136. Note that the first 3 decimals coincide. The cubic root of 401539260 is about 737.7502037208.

The spelling of 401539260 in words is "four hundred one million, five hundred thirty-nine thousand, two hundred sixty".