718281904 has 80 divisors (see below), whose sum is σ = 1519902720. Its totient is φ = 327824640.

The previous prime is 718281899. The next prime is 718281953. The reversal of 718281904 is 409182817.

It is a happy number.

It is a super-2 number, since 2×718281904² = 1031857787227730432, 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, 900834 + ... + 901630.

It is an arithmetic number, because the mean of its divisors is an integer number (18998784).

Almost surely, 2^718281904 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 718281904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (759951360).

718281904 is an abundant number, since it is smaller than the sum of its proper divisors (801620816).

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

718281904 is a wasteful number, since it uses less digits than its factorization.

718281904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 718281904 is about 26800.7817796422. The cubic root of 718281904 is about 895.5674663499.

The spelling of 718281904 in words is "seven hundred eighteen million, two hundred eighty-one thousand, nine hundred four".