51790404 has 48 divisors (see below), whose sum is σ = 127955520. Its totient is φ = 16275840.

The previous prime is 51790399. The next prime is 51790441. The reversal of 51790404 is 40409715.

It is a happy number.

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, 13234 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (2665740).

Almost surely, 2^51790404 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 51790404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63977760).

51790404 is an abundant number, since it is smaller than the sum of its proper divisors (76165116).

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

51790404 is a wasteful number, since it uses less digits than its factorization.

51790404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540 (or 3538 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 51790404 is about 7196.5550091693. Note that the first 3 decimals coincide. The cubic root of 51790404 is about 372.7489535889.

The spelling of 51790404 in words is "fifty-one million, seven hundred ninety thousand, four hundred four".