40295290 has 16 divisors (see below), whose sum is σ = 82893312. Its totient is φ = 13815504.

The previous prime is 40295273. The next prime is 40295323. The reversal of 40295290 is 9259204.

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, 287754 + ... + 287893.

It is an arithmetic number, because the mean of its divisors is an integer number (5180832).

Almost surely, 2^40295290 is an apocalyptic number.

40295290 is an abundant number, since it is smaller than the sum of its proper divisors (42598022).

40295290 is a wasteful number, since it uses less digits than its factorization.

40295290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575661.

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

The square root of 40295290 is about 6347.8571187449. The cubic root of 40295290 is about 342.8346915689.

The spelling of 40295290 in words is "forty million, two hundred ninety-five thousand, two hundred ninety".