50440918 has 32 divisors (see below), whose sum is σ = 86067360. Its totient is φ = 21960960.

The previous prime is 50440913. The next prime is 50440939. The reversal of 50440918 is 81904405.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 50440918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50440913) 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, 110146 + ... + 110602.

It is an arithmetic number, because the mean of its divisors is an integer number (2689605).

Almost surely, 2^50440918 is an apocalyptic number.

50440918 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

50440918 is a deficient number, since it is larger than the sum of its proper divisors (35626442).

50440918 is a wasteful number, since it uses less digits than its factorization.

50440918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 50440918 is about 7102.1769901911. The cubic root of 50440918 is about 369.4828860890.

The spelling of 50440918 in words is "fifty million, four hundred forty thousand, nine hundred eighteen".