616673424 has 80 divisors (see below), whose sum is σ = 1749888000. Its totient is φ = 186265728.

The previous prime is 616673399. The next prime is 616673467. The reversal of 616673424 is 424376616.

It is a happy number.

It is a super-2 number, since 2×616673424² = 760572223735767552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6277 + ... + 35675.

It is an arithmetic number, because the mean of its divisors is an integer number (21873600).

Almost surely, 2^616673424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616673424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874944000).

616673424 is an abundant number, since it is smaller than the sum of its proper divisors (1133214576).

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

616673424 is a wasteful number, since it uses less digits than its factorization.

616673424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29452 (or 29446 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 616673424 is about 24832.9100993017. The cubic root of 616673424 is about 851.1741209014.

The spelling of 616673424 in words is "six hundred sixteen million, six hundred seventy-three thousand, four hundred twenty-four".