1040640172 has 36 divisors (see below), whose sum is σ = 2155719328. Its totient is φ = 436629600.

The previous prime is 1040640149. The next prime is 1040640197. The reversal of 1040640172 is 2710460401.

1040640172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76404 + ... + 88987.

Almost surely, 2^1040640172 is an apocalyptic number.

It is an amenable number.

1040640172 is an abundant number, since it is smaller than the sum of its proper divisors (1115079156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040640172 is a wasteful number, since it uses less digits than its factorization.

1040640172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165430 (or 165417 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1040640172 is about 32258.9549117760. The cubic root of 1040640172 is about 1013.3672446042.

The spelling of 1040640172 in words is "one billion, forty million, six hundred forty thousand, one hundred seventy-two".