40173472 has 12 divisors (see below), whose sum is σ = 79091586. Its totient is φ = 20086720.

The previous prime is 40173461. The next prime is 40173491. The reversal of 40173472 is 27437104.

It can be written as a sum of positive squares in only one way, i.e., 37994896 + 2178576 = 6164^2 + 1476^2 .

It is a super-2 number, since 2×40173472² = 3227815705069568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40173472.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627679 + ... + 627742.

Almost surely, 2^40173472 is an apocalyptic number.

It is an amenable number.

40173472 is a deficient number, since it is larger than the sum of its proper divisors (38918114).

40173472 is a wasteful number, since it uses less digits than its factorization.

40173472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255431 (or 1255423 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 40173472 is about 6338.2546493495. The cubic root of 40173472 is about 342.4888646104.

The spelling of 40173472 in words is "forty million, one hundred seventy-three thousand, four hundred seventy-two".