232451640 has 256 divisors, whose sum is σ = 821145600. Its totient is φ = 58406400.

The previous prime is 232451629. The next prime is 232451669. The reversal of 232451640 is 46154232.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1774375 + ... + 1774505.

It is an arithmetic number, because the mean of its divisors is an integer number (3207600).

Almost surely, 2^232451640 is an apocalyptic number.

232451640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232451640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410572800).

232451640 is an abundant number, since it is smaller than the sum of its proper divisors (588693960).

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

232451640 is a wasteful number, since it uses less digits than its factorization.

232451640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 232451640 is about 15246.3648126365. The cubic root of 232451640 is about 614.8618368990.

The spelling of 232451640 in words is "two hundred thirty-two million, four hundred fifty-one thousand, six hundred forty".