1232646387 has 32 divisors (see below), whose sum is σ = 2026363392. Its totient is φ = 650417664.

The previous prime is 1232646367. The next prime is 1232646409. The reversal of 1232646387 is 7836462321.

It is not a de Polignac number, because 1232646387 - 2²² = 1228452083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232646347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13653 + ... + 51494.

It is an arithmetic number, because the mean of its divisors is an integer number (63323856).

Almost surely, 2^1232646387 is an apocalyptic number.

1232646387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1232646387 is a deficient number, since it is larger than the sum of its proper divisors (793717005).

1232646387 is a wasteful number, since it uses less digits than its factorization.

1232646387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65227.

The product of its digits is 290304, while the sum is 42.

The square root of 1232646387 is about 35109.0641715213. The cubic root of 1232646387 is about 1072.2091334180.

The spelling of 1232646387 in words is "one billion, two hundred thirty-two million, six hundred forty-six thousand, three hundred eighty-seven".