50440404 has 72 divisors (see below), whose sum is σ = 138341280. Its totient is φ = 14261184.

The previous prime is 50440393. The next prime is 50440409. The reversal of 50440404 is 40404405.

It is a super-3 number, since 3×50440404³ (a number of 24 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50440409) 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, 63699 + ... + 64485.

Almost surely, 2^50440404 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 50440404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69170640).

50440404 is an abundant number, since it is smaller than the sum of its proper divisors (87900876).

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

50440404 is a wasteful number, since it uses less digits than its factorization.

50440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 50440404 is about 7102.1408040111. The cubic root of 50440404 is about 369.4816310573.

Adding to 50440404 its reverse (40404405), we get a palindrome (90844809).

The spelling of 50440404 in words is "fifty million, four hundred forty thousand, four hundred four".