49769181 has 64 divisors (see below), whose sum is σ = 94556160. Its totient is φ = 25116480.

The previous prime is 49769179. The next prime is 49769197. The reversal of 49769181 is 18196794.

It is a happy number.

It is not a de Polignac number, because 49769181 - 2¹ = 49769179 is a prime.

It is a super-2 number, since 2×49769181² = 4953942754821522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49769101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76600 + ... + 77246.

It is an arithmetic number, because the mean of its divisors is an integer number (1477440).

Almost surely, 2^49769181 is an apocalyptic number.

It is an amenable number.

49769181 is a deficient number, since it is larger than the sum of its proper divisors (44786979).

49769181 is a wasteful number, since it uses less digits than its factorization.

49769181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 705 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 49769181 is about 7054.7275638397. The cubic root of 49769181 is about 367.8353789726.

The spelling of 49769181 in words is "forty-nine million, seven hundred sixty-nine thousand, one hundred eighty-one".