49240891 has 16 divisors (see below), whose sum is σ = 60977664. Its totient is φ = 38795904.

The previous prime is 49240883. The next prime is 49240897. The reversal of 49240891 is 19804294.

It is a happy number.

It is not a de Polignac number, because 49240891 - 2³ = 49240883 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 49240891.

It is not an unprimeable number, because it can be changed into a prime (49240897) 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, 306 + ... + 9928.

It is an arithmetic number, because the mean of its divisors is an integer number (3811104).

Almost surely, 2^49240891 is an apocalyptic number.

49240891 is a deficient number, since it is larger than the sum of its proper divisors (11736773).

49240891 is a wasteful number, since it uses less digits than its factorization.

49240891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9690.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 49240891 is about 7017.1854044196. The cubic root of 49240891 is about 366.5292466674.

The spelling of 49240891 in words is "forty-nine million, two hundred forty thousand, eight hundred ninety-one".