49090939 has 4 divisors (see below), whose sum is σ = 50783760. Its totient is φ = 47398120.

The previous prime is 49090919. The next prime is 49090957. The reversal of 49090939 is 93909094.

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

It is a cyclic number.

It is not a de Polignac number, because 49090939 - 2⁹ = 49090427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49090895 and 49090904.

It is not an unprimeable number, because it can be changed into a prime (49090919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846367 + ... + 846424.

It is an arithmetic number, because the mean of its divisors is an integer number (12695940).

Almost surely, 2^49090939 is an apocalyptic number.

49090939 is a deficient number, since it is larger than the sum of its proper divisors (1692821).

49090939 is a wasteful number, since it uses less digits than its factorization.

49090939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692820.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 49090939 is about 7006.4926318380. The cubic root of 49090939 is about 366.1568077025.

The spelling of 49090939 in words is "forty-nine million, ninety thousand, nine hundred thirty-nine".