612579420 has 108 divisors (see below), whose sum is σ = 1881780264. Its totient is φ = 161300160.

The previous prime is 612579413. The next prime is 612579431. The reversal of 612579420 is 24975216.

612579420 is a `hidden beast` number, since 61 + 2 + 579 + 4 + 20 = 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 35 ways as a sum of consecutive naturals, for example, 2903115 + ... + 2903325.

Almost surely, 2^612579420 is an apocalyptic number.

612579420 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 612579420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940890132).

612579420 is an abundant number, since it is smaller than the sum of its proper divisors (1269200844).

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

612579420 is a wasteful number, since it uses less digits than its factorization.

612579420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 612579420 is about 24750.3418158215. The cubic root of 612579420 is about 849.2863306054.

The spelling of 612579420 in words is "six hundred twelve million, five hundred seventy-nine thousand, four hundred twenty".