49890919 has 16 divisors (see below), whose sum is σ = 54964224. Its totient is φ = 45007200.

The previous prime is 49890917. The next prime is 49890943. The reversal of 49890919 is 91909894.

It is a cyclic number.

It is not a de Polignac number, because 49890919 - 2¹ = 49890917 is a prime.

It is a super-2 number, since 2×49890919² = 4978207597329122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49890917) 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, 176152 + ... + 176434.

It is an arithmetic number, because the mean of its divisors is an integer number (3435264).

Almost surely, 2^49890919 is an apocalyptic number.

49890919 is a deficient number, since it is larger than the sum of its proper divisors (5073305).

49890919 is a wasteful number, since it uses less digits than its factorization.

49890919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 49890919 is about 7063.3504089773. The cubic root of 49890919 is about 368.1350495785.

The spelling of 49890919 in words is "forty-nine million, eight hundred ninety thousand, nine hundred nineteen".