1240616644 has 12 divisors (see below), whose sum is σ = 2171703744. Its totient is φ = 620129864.

The previous prime is 1240616639. The next prime is 1240616801. The reversal of 1240616644 is 4466160421.

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, 28312 + ... + 57295.

It is an arithmetic number, because the mean of its divisors is an integer number (180975312).

Almost surely, 2^1240616644 is an apocalyptic number.

It is an amenable number.

1240616644 is a deficient number, since it is larger than the sum of its proper divisors (931087100).

1240616644 is a wasteful number, since it uses less digits than its factorization.

1240616644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89234 (or 89232 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1240616644 is about 35222.3883914762. The cubic root of 1240616644 is about 1074.5151284414.

The spelling of 1240616644 in words is "one billion, two hundred forty million, six hundred sixteen thousand, six hundred forty-four".