616625460 has 120 divisors (see below), whose sum is σ = 2110290336. Its totient is φ = 149480640.

The previous prime is 616625459. The next prime is 616625473. The reversal of 616625460 is 64526616.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 519 + ... + 35121.

Almost surely, 2^616625460 is an apocalyptic number.

616625460 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 616625460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055145168).

616625460 is an abundant number, since it is smaller than the sum of its proper divisors (1493664876).

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

616625460 is a wasteful number, since it uses less digits than its factorization.

616625460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34635 (or 34624 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 616625460 is about 24831.9443459428. The cubic root of 616625460 is about 851.1520526167.

It can be divided in two parts, 6166 and 25460, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 616625460 in words is "six hundred sixteen million, six hundred twenty-five thousand, four hundred sixty".