50409432 has 128 divisors (see below), whose sum is σ = 150336000. Its totient is φ = 15603840.

The previous prime is 50409431. The next prime is 50409439. The reversal of 50409432 is 23490405.

It is a super-2 number, since 2×50409432² = 5082221669125248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 50409396 and 50409405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50409431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291298 + ... + 291470.

It is an arithmetic number, because the mean of its divisors is an integer number (1174500).

Almost surely, 2^50409432 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 50409432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75168000).

50409432 is an abundant number, since it is smaller than the sum of its proper divisors (99926568).

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

50409432 is a wasteful number, since it uses less digits than its factorization.

50409432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 50409432 is about 7099.9599998873. The cubic root of 50409432 is about 369.4059911125.

Adding to 50409432 its reverse (23490405), we get a palindrome (73899837).

The spelling of 50409432 in words is "fifty million, four hundred nine thousand, four hundred thirty-two".