1240313232 has 20 divisors (see below), whose sum is σ = 3204142640. Its totient is φ = 413437728.

The previous prime is 1240313219. The next prime is 1240313273. The reversal of 1240313232 is 2323130421.

It is a junction number, because it is equal to n+sod(n) for n = 1240313199 and 1240313208.

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, 12919882 + ... + 12919977.

It is an arithmetic number, because the mean of its divisors is an integer number (160207132).

Almost surely, 2^1240313232 is an apocalyptic number.

1240313232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240313232 is an abundant number, since it is smaller than the sum of its proper divisors (1963829408).

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

1240313232 is a wasteful number, since it uses less digits than its factorization.

1240313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25839870 (or 25839864 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1240313232 is about 35218.0810380123. The cubic root of 1240313232 is about 1074.4275248648.

Adding to 1240313232 its reverse (2323130421), we get a palindrome (3563443653).

The spelling of 1240313232 in words is "one billion, two hundred forty million, three hundred thirteen thousand, two hundred thirty-two".