40718530 has 16 divisors (see below), whose sum is σ = 73570680. Its totient is φ = 16225792.

The previous prime is 40718527. The next prime is 40718551. The reversal of 40718530 is 3581704.

It can be written as a sum of positive squares in 4 ways, for example, as 24870169 + 15848361 = 4987^2 + 3981^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4879 + ... + 10258.

Almost surely, 2^40718530 is an apocalyptic number.

40718530 is a deficient number, since it is larger than the sum of its proper divisors (32852150).

40718530 is a wasteful number, since it uses less digits than its factorization.

40718530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15413.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 40718530 is about 6381.1072706859. The cubic root of 40718530 is about 344.0308303448.

The spelling of 40718530 in words is "forty million, seven hundred eighteen thousand, five hundred thirty".