1172216264 has 32 divisors (see below), whose sum is σ = 2242753920. Its totient is φ = 574182336.

The previous prime is 1172216257. The next prime is 1172216291. The reversal of 1172216264 is 4626122711.

It is a super-2 number, since 2×1172216264² = 2748181939172235392, 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 1172216264.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348977 + ... + 352319.

It is an arithmetic number, because the mean of its divisors is an integer number (70086060).

Almost surely, 2^1172216264 is an apocalyptic number.

It is an amenable number.

1172216264 is a deficient number, since it is larger than the sum of its proper divisors (1070537656).

1172216264 is a wasteful number, since it uses less digits than its factorization.

1172216264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229 (or 4225 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 1172216264 is about 34237.6439609971. The cubic root of 1172216264 is about 1054.3931623897.

Adding to 1172216264 its reverse (4626122711), we get a palindrome (5798338975).

The spelling of 1172216264 in words is "one billion, one hundred seventy-two million, two hundred sixteen thousand, two hundred sixty-four".