1232750640 has 80 divisors (see below), whose sum is σ = 4168947456. Its totient is φ = 298848000.

The previous prime is 1232750633. The next prime is 1232750657. The reversal of 1232750640 is 460572321.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 1232750598 and 1232750607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230836 + ... + 236115.

Almost surely, 2^1232750640 is an apocalyptic number.

1232750640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232750640 is an abundant number, since it is smaller than the sum of its proper divisors (2936196816).

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

1232750640 is a wasteful number, since it uses less digits than its factorization.

1232750640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466978 (or 466972 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1232750640 is about 35110.5488421927. The cubic root of 1232750640 is about 1072.2393604884.

The spelling of 1232750640 in words is "one billion, two hundred thirty-two million, seven hundred fifty thousand, six hundred forty".