50400490 has 16 divisors (see below), whose sum is σ = 103681152. Its totient is φ = 17280144.

The previous prime is 50400473. The next prime is 50400491. The reversal of 50400490 is 9400405.

It is not an unprimeable number, because it can be changed into a prime (50400491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359934 + ... + 360073.

It is an arithmetic number, because the mean of its divisors is an integer number (6480072).

Almost surely, 2^50400490 is an apocalyptic number.

50400490 is an abundant number, since it is smaller than the sum of its proper divisors (53280662).

50400490 is a wasteful number, since it uses less digits than its factorization.

50400490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720021.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 50400490 is about 7099.3302501011. The cubic root of 50400490 is about 369.3841471601.

Adding to 50400490 its reverse (9400405), we get a palindrome (59800895).

The spelling of 50400490 in words is "fifty million, four hundred thousand, four hundred ninety".