612073920 has 224 divisors, whose sum is σ = 2034210816. Its totient is φ = 155750400.

The previous prime is 612073883. The next prime is 612073921. The reversal of 612073920 is 29370216.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612073921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3898482 + ... + 3898638.

Almost surely, 2^612073920 is an apocalyptic number.

612073920 is a gapful number since it is divisible by the number (60) 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 612073920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017105408).

612073920 is an abundant number, since it is smaller than the sum of its proper divisors (1422136896).

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

612073920 is a wasteful number, since it uses less digits than its factorization.

612073920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 612073920 is about 24740.1277280454. The cubic root of 612073920 is about 849.0526562060.

The spelling of 612073920 in words is "six hundred twelve million, seventy-three thousand, nine hundred twenty".