50399140 has 48 divisors (see below), whose sum is σ = 116593344. Its totient is φ = 18147200.

The previous prime is 50399113. The next prime is 50399147. The reversal of 50399140 is 4199305.

It is not an unprimeable number, because it can be changed into a prime (50399147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22470 + ... + 24610.

It is an arithmetic number, because the mean of its divisors is an integer number (2429028).

Almost surely, 2^50399140 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 50399140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58296672).

50399140 is an abundant number, since it is smaller than the sum of its proper divisors (66194204).

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

50399140 is a wasteful number, since it uses less digits than its factorization.

50399140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 50399140 is about 7099.2351700729. The cubic root of 50399140 is about 369.3808490899.

The spelling of 50399140 in words is "fifty million, three hundred ninety-nine thousand, one hundred forty".