40180912 has 10 divisors (see below), whose sum is σ = 77850548. Its totient is φ = 20090448.

The previous prime is 40180871. The next prime is 40180937. The reversal of 40180912 is 21908104.

It is a happy number.

It is a super-2 number, since 2×40180912² = 3229011378303488, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1255638 + ... + 1255669.

Almost surely, 2^40180912 is an apocalyptic number.

It is an amenable number.

40180912 is a deficient number, since it is larger than the sum of its proper divisors (37669636).

40180912 is a wasteful number, since it uses less digits than its factorization.

40180912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511315 (or 2511309 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 40180912 is about 6338.8415345393. The cubic root of 40180912 is about 342.5100059236.

The spelling of 40180912 in words is "forty million, one hundred eighty thousand, nine hundred twelve".