50142040 has 64 divisors (see below), whose sum is σ = 122340960. Its totient is φ = 18385920.

The previous prime is 50142023. The next prime is 50142041. The reversal of 50142040 is 4024105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50142041) 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, 109492 + ... + 109948.

Almost surely, 2^50142040 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 50142040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61170480).

50142040 is an abundant number, since it is smaller than the sum of its proper divisors (72198920).

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

50142040 is a wasteful number, since it uses less digits than its factorization.

50142040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 50142040 is about 7081.1044336318. The cubic root of 50142040 is about 368.7516732664.

Adding to 50142040 its reverse (4024105), we get a palindrome (54166145).

The spelling of 50142040 in words is "fifty million, one hundred forty-two thousand, forty".