49492439 has 4 divisors (see below), whose sum is σ = 49512600. Its totient is φ = 49472280.

The previous prime is 49492433. The next prime is 49492451. The reversal of 49492439 is 93429494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93429494 = 2 ⋅46714747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49492439 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 49492439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49492433) 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, 5789 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (12378150).

Almost surely, 2^49492439 is an apocalyptic number.

49492439 is a deficient number, since it is larger than the sum of its proper divisors (20161).

49492439 is a wasteful number, since it uses less digits than its factorization.

49492439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20160.

The product of its digits is 279936, while the sum is 44.

The square root of 49492439 is about 7035.0862823422. The cubic root of 49492439 is about 367.1523273350.

The spelling of 49492439 in words is "forty-nine million, four hundred ninety-two thousand, four hundred thirty-nine".