50413440 has 384 divisors, whose sum is σ = 208373760. Its totient is φ = 10137600.

The previous prime is 50413439. The next prime is 50413457. The reversal of 50413440 is 4431405.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1626225 + ... + 1626255.

It is an arithmetic number, because the mean of its divisors is an integer number (542640).

Almost surely, 2^50413440 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 50413440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104186880).

50413440 is an abundant number, since it is smaller than the sum of its proper divisors (157960320).

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

50413440 is a wasteful number, since it uses less digits than its factorization.

50413440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 50413440 is about 7100.2422493884. The cubic root of 50413440 is about 369.4157812114.

Adding to 50413440 its reverse (4431405), we get a palindrome (54844845).

The spelling of 50413440 in words is "fifty million, four hundred thirteen thousand, four hundred forty".