400059140 has 48 divisors (see below), whose sum is σ = 926840880. Its totient is φ = 144107520.

The previous prime is 400059139. The next prime is 400059151. The reversal of 400059140 is 41950004.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 228553924 + 171505216 = 15118^2 + 13096^2 .

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, 8105 + ... + 29424.

It is an arithmetic number, because the mean of its divisors is an integer number (19309185).

Almost surely, 2^400059140 is an apocalyptic number.

It is an amenable number.

400059140 is an abundant number, since it is smaller than the sum of its proper divisors (526781740).

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

400059140 is a wasteful number, since it uses less digits than its factorization.

400059140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37592 (or 37590 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 400059140 is about 20001.4784453550. The cubic root of 400059140 is about 736.8426102091.

The spelling of 400059140 in words is "four hundred million, fifty-nine thousand, one hundred forty".