1229924457 has 12 divisors (see below), whose sum is σ = 1776967920. Its totient is φ = 819760248.

The previous prime is 1229924441. The next prime is 1229924477. The reversal of 1229924457 is 7544299221.

It is not a de Polignac number, because 1229924457 - 2⁴ = 1229924441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1229924477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33418 + ... + 59804.

It is an arithmetic number, because the mean of its divisors is an integer number (148080660).

Almost surely, 2^1229924457 is an apocalyptic number.

It is an amenable number.

1229924457 is a deficient number, since it is larger than the sum of its proper divisors (547043463).

1229924457 is a wasteful number, since it uses less digits than its factorization.

1229924457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31572 (or 31569 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1229924457 is about 35070.2788269498. The cubic root of 1229924457 is about 1071.4193343127.

It can be divided in two parts, 122992 and 4457, that added together give a square (127449 = 357²).

The spelling of 1229924457 in words is "one billion, two hundred twenty-nine million, nine hundred twenty-four thousand, four hundred fifty-seven".