1232689020 has 24 divisors (see below), whose sum is σ = 3451529424. Its totient is φ = 328717056.

The previous prime is 1232689019. The next prime is 1232689039. The reversal of 1232689020 is 209862321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10272349 + ... + 10272468.

It is an arithmetic number, because the mean of its divisors is an integer number (143813726).

Almost surely, 2^1232689020 is an apocalyptic number.

1232689020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232689020 is an abundant number, since it is smaller than the sum of its proper divisors (2218840404).

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

1232689020 is a wasteful number, since it uses less digits than its factorization.

1232689020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20544829 (or 20544827 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1232689020 is about 35109.6713171741. The cubic root of 1232689020 is about 1072.2214946178.

The spelling of 1232689020 in words is "one billion, two hundred thirty-two million, six hundred eighty-nine thousand, twenty".