612738432 has 160 divisors (see below), whose sum is σ = 1843154280. Its totient is φ = 202051584.

The previous prime is 612738409. The next prime is 612738479. The reversal of 612738432 is 234837216.

It is a happy number.

612738432 is a `hidden beast` number, since 612 + 7 + 3 + 8 + 4 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1171323 + ... + 1171845.

Almost surely, 2^612738432 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 612738432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921577140).

612738432 is an abundant number, since it is smaller than the sum of its proper divisors (1230415848).

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

612738432 is a wasteful number, since it uses less digits than its factorization.

612738432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 641 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 612738432 is about 24753.5539266587. The cubic root of 612738432 is about 849.3598095320.

The spelling of 612738432 in words is "six hundred twelve million, seven hundred thirty-eight thousand, four hundred thirty-two".