40158572 has 12 divisors (see below), whose sum is σ = 70324800. Its totient is φ = 20065776.

The previous prime is 40158551. The next prime is 40158589. The reversal of 40158572 is 27585104.

It is a super-2 number, since 2×40158572² = 3225421810158368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6554 + ... + 11102.

It is an arithmetic number, because the mean of its divisors is an integer number (5860400).

Almost surely, 2^40158572 is an apocalyptic number.

It is an amenable number.

40158572 is a deficient number, since it is larger than the sum of its proper divisors (30166228).

40158572 is a wasteful number, since it uses less digits than its factorization.

40158572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760 (or 6758 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 40158572 is about 6337.0791378994. The cubic root of 40158572 is about 342.4465173029.

The spelling of 40158572 in words is "forty million, one hundred fifty-eight thousand, five hundred seventy-two".