49909379 has 16 divisors (see below), whose sum is σ = 56899584. Its totient is φ = 43428000.

The previous prime is 49909309. The next prime is 49909381. The reversal of 49909379 is 97390994.

It is a cyclic number.

It is not a de Polignac number, because 49909379 - 2²⁰ = 48860803 is a prime.

It is a super-2 number, since 2×49909379² = 4981892224331282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49909309) 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, 20054 + ... + 22404.

It is an arithmetic number, because the mean of its divisors is an integer number (3556224).

Almost surely, 2^49909379 is an apocalyptic number.

49909379 is a deficient number, since it is larger than the sum of its proper divisors (6990205).

49909379 is a wasteful number, since it uses less digits than its factorization.

49909379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 49909379 is about 7064.6570334306. The cubic root of 49909379 is about 368.1804481879.

The spelling of 49909379 in words is "forty-nine million, nine hundred nine thousand, three hundred seventy-nine".