50402144 has 48 divisors (see below), whose sum is σ = 113164128. Its totient is φ = 21891072.

The previous prime is 50402137. The next prime is 50402147. The reversal of 50402144 is 44120405.

It is a super-2 number, since 2×50402144² = 5080752239593472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50402147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (2357586).

Almost surely, 2^50402144 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 50402144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56582064).

50402144 is an abundant number, since it is smaller than the sum of its proper divisors (62761984).

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

50402144 is a wasteful number, since it uses less digits than its factorization.

50402144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167 (or 7159 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 50402144 is about 7099.4467390072. The cubic root of 50402144 is about 369.3881878264.

Adding to 50402144 its reverse (44120405), we get a palindrome (94522549).

The spelling of 50402144 in words is "fifty million, four hundred two thousand, one hundred forty-four".