407252940 has 48 divisors (see below), whose sum is σ = 1142195040. Its totient is φ = 108421120.

The previous prime is 407252933. The next prime is 407252941. The reversal of 407252940 is 49252704.

It is not an unprimeable number, because it can be changed into a prime (407252941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33166 + ... + 43754.

It is an arithmetic number, because the mean of its divisors is an integer number (23795730).

Almost surely, 2^407252940 is an apocalyptic number.

It is an amenable number.

407252940 is an abundant number, since it is smaller than the sum of its proper divisors (734942100).

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

407252940 is a wasteful number, since it uses less digits than its factorization.

407252940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11242 (or 11240 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 407252940 is about 20180.5089133054. The cubic root of 407252940 is about 741.2329943480.

The spelling of 407252940 in words is "four hundred seven million, two hundred fifty-two thousand, nine hundred forty".