1240331772 has 12 divisors (see below), whose sum is σ = 2894107496. Its totient is φ = 413443920.

The previous prime is 1240331767. The next prime is 1240331789. The reversal of 1240331772 is 2771330421.

It is a tau number, because it is divible by the number of its divisors (12).

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, 51680479 + ... + 51680502.

Almost surely, 2^1240331772 is an apocalyptic number.

1240331772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240331772 is an abundant number, since it is smaller than the sum of its proper divisors (1653775724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240331772 is a wasteful number, since it uses less digits than its factorization.

1240331772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103360988 (or 103360986 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 1240331772 is about 35218.3442540958. The cubic root of 1240331772 is about 1074.4328782939.

The spelling of 1240331772 in words is "one billion, two hundred forty million, three hundred thirty-one thousand, seven hundred seventy-two".