40925290 has 60 divisors (see below), whose sum is σ = 91048266. Its totient is φ = 13206144.

The previous prime is 40925263. The next prime is 40925329. The reversal of 40925290 is 9252904.

It can be written as a sum of positive squares in 5 ways, for example, as 25613721 + 15311569 = 5061^2 + 3913^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2407362 + ... + 2407378.

Almost surely, 2^40925290 is an apocalyptic number.

40925290 is an abundant number, since it is smaller than the sum of its proper divisors (50122976).

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

40925290 is an frugal number, since it uses more digits than its factorization.

40925290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40925290 is about 6397.2877065206. The cubic root of 40925290 is about 344.6121525388.

The spelling of 40925290 in words is "forty million, nine hundred twenty-five thousand, two hundred ninety".