50402790 has 128 divisors (see below), whose sum is σ = 145152000. Its totient is φ = 12400128.

The previous prime is 50402789. The next prime is 50402819. The reversal of 50402790 is 9720405.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 362541 + ... + 362679.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^50402790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50402790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72576000).

50402790 is an abundant number, since it is smaller than the sum of its proper divisors (94749210).

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

50402790 is a wasteful number, since it uses less digits than its factorization.

50402790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 50402790 is about 7099.4922353644. The cubic root of 50402790 is about 369.3897659587.

The spelling of 50402790 in words is "fifty million, four hundred two thousand, seven hundred ninety".