40154152 has 16 divisors (see below), whose sum is σ = 75840660. Its totient is φ = 19929984.

The previous prime is 40154137. The next prime is 40154171. The reversal of 40154152 is 25145104.

It can be written as a sum of positive squares in 2 ways, for example, as 40119556 + 34596 = 6334^2 + 186^2 .

It is a super-2 number, since 2×40154152² = 3224711845678208, 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, 17223 + ... + 19414.

Almost surely, 2^40154152 is an apocalyptic number.

It is an amenable number.

40154152 is a deficient number, since it is larger than the sum of its proper divisors (35686508).

40154152 is a wasteful number, since it uses less digits than its factorization.

40154152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36780 (or 36776 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 40154152 is about 6336.7303871950. The cubic root of 40154152 is about 342.4339532013.

Adding to 40154152 its reverse (25145104), we get a palindrome (65299256).

The spelling of 40154152 in words is "forty million, one hundred fifty-four thousand, one hundred fifty-two".