1232943280 has 40 divisors (see below), whose sum is σ = 2874034800. Its totient is φ = 491897088.

The previous prime is 1232943277. The next prime is 1232943281. The reversal of 1232943280 is 823492321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×1232943280³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232943281) 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, 11311 + ... + 50929.

It is an arithmetic number, because the mean of its divisors is an integer number (71850870).

Almost surely, 2^1232943280 is an apocalyptic number.

1232943280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232943280 is an abundant number, since it is smaller than the sum of its proper divisors (1641091520).

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

1232943280 is a wasteful number, since it uses less digits than its factorization.

1232943280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40021 (or 40015 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1232943280 is about 35113.2920700979. The cubic root of 1232943280 is about 1072.2952099644.

The spelling of 1232943280 in words is "one billion, two hundred thirty-two million, nine hundred forty-three thousand, two hundred eighty".