616774540 has 12 divisors (see below), whose sum is σ = 1295226576. Its totient is φ = 246709808.

The previous prime is 616774531. The next prime is 616774541. The reversal of 616774540 is 45477616.

It is a junction number, because it is equal to n+sod(n) for n = 616774493 and 616774502.

It is not an unprimeable number, because it can be changed into a prime (616774541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15419344 + ... + 15419383.

It is an arithmetic number, because the mean of its divisors is an integer number (107935548).

Almost surely, 2^616774540 is an apocalyptic number.

It is an amenable number.

616774540 is an abundant number, since it is smaller than the sum of its proper divisors (678452036).

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

616774540 is a wasteful number, since it uses less digits than its factorization.

616774540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30838736 (or 30838734 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 616774540 is about 24834.9459431665. The cubic root of 616774540 is about 851.2206407260.

The spelling of 616774540 in words is "six hundred sixteen million, seven hundred seventy-four thousand, five hundred forty".