612379980 has 48 divisors (see below), whose sum is σ = 1905183840. Its totient is φ = 163301184.

The previous prime is 612379969. The next prime is 612379981. The reversal of 612379980 is 89973216.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (612379981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566479 + ... + 567558.

It is an arithmetic number, because the mean of its divisors is an integer number (39691330).

Almost surely, 2^612379980 is an apocalyptic number.

612379980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612379980 is an abundant number, since it is smaller than the sum of its proper divisors (1292803860).

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

612379980 is a wasteful number, since it uses less digits than its factorization.

612379980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134055 (or 1134047 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 612379980 is about 24746.3124525655. The cubic root of 612379980 is about 849.1941520537.

It can be divided in two parts, 61237 and 9980, that added together give a palindrome (71217).

The spelling of 612379980 in words is "six hundred twelve million, three hundred seventy-nine thousand, nine hundred eighty".