616474770 has 64 divisors (see below), whose sum is σ = 1531547136. Its totient is φ = 158699520.

The previous prime is 616474769. The next prime is 616474783. The reversal of 616474770 is 77474616.

It is a super-2 number, since 2×616474770² = 760082284093105800, which contains 22 as substring.

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, 116727 + ... + 121893.

It is an arithmetic number, because the mean of its divisors is an integer number (23930424).

Almost surely, 2^616474770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616474770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765773568).

616474770 is an abundant number, since it is smaller than the sum of its proper divisors (915072366).

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

616474770 is a wasteful number, since it uses less digits than its factorization.

616474770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 616474770 is about 24828.9099639916. The cubic root of 616474770 is about 851.0827125496.

The spelling of 616474770 in words is "six hundred sixteen million, four hundred seventy-four thousand, seven hundred seventy".