1232378536 has 32 divisors (see below), whose sum is σ = 2391920640. Its totient is φ = 594796608.

The previous prime is 1232378531. The next prime is 1232378549. The reversal of 1232378536 is 6358732321.

It is not an unprimeable number, because it can be changed into a prime (1232378531) 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, 21201 + ... + 53983.

It is an arithmetic number, because the mean of its divisors is an integer number (74747520).

Almost surely, 2^1232378536 is an apocalyptic number.

It is an amenable number.

1232378536 is a deficient number, since it is larger than the sum of its proper divisors (1159542104).

1232378536 is a wasteful number, since it uses less digits than its factorization.

1232378536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32953 (or 32949 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 1232378536 is about 35105.2494080301. The cubic root of 1232378536 is about 1072.1314649976.

The spelling of 1232378536 in words is "one billion, two hundred thirty-two million, three hundred seventy-eight thousand, five hundred thirty-six".