232973733438 has 64 divisors (see below), whose sum is σ = 524987873280. Its totient is φ = 76568359104.

The previous prime is 232973733397. The next prime is 232973733469. The reversal of 232973733438 is 834337379232.

232973733438 is a `hidden beast` number, since 2 + 3 + 297 + 3 + 7 + 3 + 343 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14352595 + ... + 14368817.

It is an arithmetic number, because the mean of its divisors is an integer number (8202935520).

Almost surely, 2^232973733438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232973733438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262493936640).

232973733438 is an abundant number, since it is smaller than the sum of its proper divisors (292014139842).

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

232973733438 is a wasteful number, since it uses less digits than its factorization.

232973733438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19950 (or 19944 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 54.

The spelling of 232973733438 in words is "two hundred thirty-two billion, nine hundred seventy-three million, seven hundred thirty-three thousand, four hundred thirty-eight".