612485280 has 192 divisors, whose sum is σ = 2338761600. Its totient is φ = 148469760.

The previous prime is 612485267. The next prime is 612485317. The reversal of 612485280 is 82584216.

612485280 is a `hidden beast` number, since 6 + 124 + 8 + 528 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41076 + ... + 53964.

It is an arithmetic number, because the mean of its divisors is an integer number (12181050).

Almost surely, 2^612485280 is an apocalyptic number.

612485280 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 612485280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169380800).

612485280 is an abundant number, since it is smaller than the sum of its proper divisors (1726276320).

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

612485280 is a wasteful number, since it uses less digits than its factorization.

612485280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12924 (or 12910 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 612485280 is about 24748.4399508333. The cubic root of 612485280 is about 849.2428228259.

The spelling of 612485280 in words is "six hundred twelve million, four hundred eighty-five thousand, two hundred eighty".