50706390 has 64 divisors (see below), whose sum is σ = 143585280. Its totient is φ = 11214720.

The previous prime is 50706389. The next prime is 50706431. The reversal of 50706390 is 9360705.

It is a super-2 number, since 2×50706390² = 5142275973664200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2616 + ... + 10404.

It is an arithmetic number, because the mean of its divisors is an integer number (2243520).

Almost surely, 2^50706390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50706390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71792640).

50706390 is an abundant number, since it is smaller than the sum of its proper divisors (92878890).

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

50706390 is a wasteful number, since it uses less digits than its factorization.

50706390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7837.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 50706390 is about 7120.8419446018. The cubic root of 50706390 is about 370.1299519179.

The spelling of 50706390 in words is "fifty million, seven hundred six thousand, three hundred ninety".