71930404 has 48 divisors (see below), whose sum is σ = 157107328. Its totient is φ = 28055808.

The previous prime is 71930389. The next prime is 71930431. The reversal of 71930404 is 40403917.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 25219 + ... + 27925.

Almost surely, 2^71930404 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 71930404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78553664).

71930404 is an abundant number, since it is smaller than the sum of its proper divisors (85176924).

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

71930404 is a wasteful number, since it uses less digits than its factorization.

71930404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2802 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 71930404 is about 8481.1793991166. The cubic root of 71930404 is about 415.8826792559.

The spelling of 71930404 in words is "seventy-one million, nine hundred thirty thousand, four hundred four".