49990023 has 12 divisors (see below), whose sum is σ = 72348328. Its totient is φ = 33261840.

The previous prime is 49989991. The next prime is 49990069. The reversal of 49990023 is 32009994.

It is not a de Polignac number, because 49990023 - 2⁵ = 49989991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49990023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49990223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265 + ... + 10002.

Almost surely, 2^49990023 is an apocalyptic number.

49990023 is a deficient number, since it is larger than the sum of its proper divisors (22358305).

49990023 is a wasteful number, since it uses less digits than its factorization.

49990023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10814 (or 10811 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 49990023 is about 7070.3622962335. The cubic root of 49990023 is about 368.3786445125.

The spelling of 49990023 in words is "forty-nine million, nine hundred ninety thousand, twenty-three".