49890458 has 4 divisors (see below), whose sum is σ = 74835690. Its totient is φ = 24945228.

The previous prime is 49890457. The next prime is 49890487. The reversal of 49890458 is 85409894.

49890458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49885969 + 4489 = 7063^2 + 67^2 .

It is not an unprimeable number, because it can be changed into a prime (49890457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12472613 + ... + 12472616.

Almost surely, 2^49890458 is an apocalyptic number.

49890458 is a deficient number, since it is larger than the sum of its proper divisors (24945232).

49890458 is a wasteful number, since it uses less digits than its factorization.

49890458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24945231.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 49890458 is about 7063.3177756632. The cubic root of 49890458 is about 368.1339156996.

The spelling of 49890458 in words is "forty-nine million, eight hundred ninety thousand, four hundred fifty-eight".