49490845 has 4 divisors (see below), whose sum is σ = 59389020. Its totient is φ = 39592672.

The previous prime is 49490843. The next prime is 49490851. The reversal of 49490845 is 54809494.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18610596 + 30880249 = 4314^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 49490845 - 2¹ = 49490843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49490843) 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, 4949080 + ... + 4949089.

It is an arithmetic number, because the mean of its divisors is an integer number (14847255).

Almost surely, 2^49490845 is an apocalyptic number.

It is an amenable number.

49490845 is a deficient number, since it is larger than the sum of its proper divisors (9898175).

49490845 is an equidigital number, since it uses as much as digits as its factorization.

49490845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9898174.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 49490845 is about 7034.9729921301. The cubic root of 49490845 is about 367.1483856751.

The spelling of 49490845 in words is "forty-nine million, four hundred ninety thousand, eight hundred forty-five".