50400405 has 48 divisors (see below), whose sum is σ = 98616960. Its totient is φ = 23587200.

The previous prime is 50400397. The next prime is 50400419.

It is a happy number.

50400405 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 50400405 - 2³ = 50400397 is a prime.

It is a Curzon number.

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, 12600 + ... + 16110.

It is an arithmetic number, because the mean of its divisors is an integer number (2054520).

Almost surely, 2^50400405 is an apocalyptic number.

50400405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50400405 is a deficient number, since it is larger than the sum of its proper divisors (48216555).

50400405 is a wasteful number, since it uses less digits than its factorization.

50400405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562 (or 3559 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 50400405 is about 7099.3242636183. The cubic root of 50400405 is about 369.3839395055.

It can be divided in two parts, 50400 and 405, that added together give a palindrome (50805).

The spelling of 50400405 in words is "fifty million, four hundred thousand, four hundred five".