1224025916 has 12 divisors (see below), whose sum is σ = 2152810800. Its totient is φ = 608937120.

The previous prime is 1224025889. The next prime is 1224025927. The reversal of 1224025916 is 6195204221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768065 + ... + 769656.

It is an arithmetic number, because the mean of its divisors is an integer number (179400900).

Almost surely, 2^1224025916 is an apocalyptic number.

It is an amenable number.

1224025916 is a deficient number, since it is larger than the sum of its proper divisors (928784884).

1224025916 is a wasteful number, since it uses less digits than its factorization.

1224025916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537924 (or 1537922 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1224025916 is about 34986.0817468890. The cubic root of 1224025916 is about 1069.7037978264.

The spelling of 1224025916 in words is "one billion, two hundred twenty-four million, twenty-five thousand, nine hundred sixteen".