501996942 has 48 divisors (see below), whose sum is σ = 1159142400. Its totient is φ = 156645456.

The previous prime is 501996941. The next prime is 501996949. The reversal of 501996942 is 249699105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501996941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6559 + ... + 32357.

It is an arithmetic number, because the mean of its divisors is an integer number (24148800).

Almost surely, 2^501996942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501996942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (579571200).

501996942 is an abundant number, since it is smaller than the sum of its proper divisors (657145458).

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

501996942 is a wasteful number, since it uses less digits than its factorization.

501996942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25877 (or 25874 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 501996942 is about 22405.2882596944. The cubic root of 501996942 is about 794.7557716627.

The spelling of 501996942 in words is "five hundred one million, nine hundred ninety-six thousand, nine hundred forty-two".