1040172772 has 6 divisors (see below), whose sum is σ = 1820302358. Its totient is φ = 520086384.

The previous prime is 1040172743. The next prime is 1040172811. The reversal of 1040172772 is 2772710401.

It can be written as a sum of positive squares in only one way, i.e., 647498916 + 392673856 = 25446^2 + 19816^2 .

It is a super-2 number, since 2×1040172772² = 2163918791220327968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130021593 + ... + 130021600.

Almost surely, 2^1040172772 is an apocalyptic number.

It is an amenable number.

1040172772 is a deficient number, since it is larger than the sum of its proper divisors (780129586).

1040172772 is a wasteful number, since it uses less digits than its factorization.

1040172772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260043197 (or 260043195 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 1040172772 is about 32251.7095980973. The cubic root of 1040172772 is about 1013.2155050651.

The spelling of 1040172772 in words is "one billion, forty million, one hundred seventy-two thousand, seven hundred seventy-two".