612798720 has 144 divisors (see below), whose sum is σ = 1994715072. Its totient is φ = 160276480.

The previous prime is 612798701. The next prime is 612798757. The reversal of 612798720 is 27897216.

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, 202015 + ... + 205025.

It is an arithmetic number, because the mean of its divisors is an integer number (13852188).

Almost surely, 2^612798720 is an apocalyptic number.

612798720 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 612798720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997357536).

612798720 is an abundant number, since it is smaller than the sum of its proper divisors (1381916352).

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

612798720 is a wasteful number, since it uses less digits than its factorization.

612798720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 612798720 is about 24754.7716612374. The cubic root of 612798720 is about 849.3876650966.

The spelling of 612798720 in words is "six hundred twelve million, seven hundred ninety-eight thousand, seven hundred twenty".