1232864040 has 32 divisors (see below), whose sum is σ = 3698592480. Its totient is φ = 328763712.

The previous prime is 1232864033. The next prime is 1232864041. The reversal of 1232864040 is 404682321.

It is a super-2 number, since 2×1232864040² = 3039907482250243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1232863989 and 1232864007.

It is not an unprimeable number, because it can be changed into a prime (1232864041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5136814 + ... + 5137053.

It is an arithmetic number, because the mean of its divisors is an integer number (115581015).

Almost surely, 2^1232864040 is an apocalyptic number.

1232864040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232864040 is an abundant number, since it is smaller than the sum of its proper divisors (2465728440).

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

1232864040 is a wasteful number, since it uses less digits than its factorization.

1232864040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10273881 (or 10273877 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1232864040 is about 35112.1637043347. The cubic root of 1232864040 is about 1072.2722377012.

The spelling of 1232864040 in words is "one billion, two hundred thirty-two million, eight hundred sixty-four thousand, forty".