653812432 has 80 divisors (see below), whose sum is σ = 1565788672. Its totient is φ = 257541120.

The previous prime is 653812429. The next prime is 653812451. The reversal of 653812432 is 234218356.

It is a congruent number.

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, 393748 + ... + 395404.

Almost surely, 2^653812432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653812432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782894336).

653812432 is an abundant number, since it is smaller than the sum of its proper divisors (911976240).

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

653812432 is a wasteful number, since it uses less digits than its factorization.

653812432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956 (or 1950 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 653812432 is about 25569.7561975080. The cubic root of 653812432 is about 867.9293832844.

The spelling of 653812432 in words is "six hundred fifty-three million, eight hundred twelve thousand, four hundred thirty-two".