401475140 has 24 divisors (see below), whose sum is σ = 919743552. Its totient is φ = 145990880.

The previous prime is 401475131. The next prime is 401475161. The reversal of 401475140 is 41574104.

It is a super-2 number, since 2×401475140² = 322364576076039200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912224 + ... + 912663.

It is an arithmetic number, because the mean of its divisors is an integer number (38322648).

Almost surely, 2^401475140 is an apocalyptic number.

It is an amenable number.

401475140 is an abundant number, since it is smaller than the sum of its proper divisors (518268412).

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

401475140 is a wasteful number, since it uses less digits than its factorization.

401475140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824907 (or 1824905 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 401475140 is about 20036.8445619564. The cubic root of 401475140 is about 737.7109322922.

The spelling of 401475140 in words is "four hundred one million, four hundred seventy-five thousand, one hundred forty".