612671280 has 160 divisors (see below), whose sum is σ = 2062368000. Its totient is φ = 149560320.

The previous prime is 612671221. The next prime is 612671287. The reversal of 612671280 is 82176216.

It is not an unprimeable number, because it can be changed into a prime (612671287) 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, 407971 + ... + 409469.

It is an arithmetic number, because the mean of its divisors is an integer number (12889800).

Almost surely, 2^612671280 is an apocalyptic number.

612671280 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 612671280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031184000).

612671280 is an abundant number, since it is smaller than the sum of its proper divisors (1449696720).

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

612671280 is a wasteful number, since it uses less digits than its factorization.

612671280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 612671280 is about 24752.1974782038. The cubic root of 612671280 is about 849.3287803627.

The spelling of 612671280 in words is "six hundred twelve million, six hundred seventy-one thousand, two hundred eighty".