49744781 has 4 divisors (see below), whose sum is σ = 49768992. Its totient is φ = 49720572.

The previous prime is 49744769. The next prime is 49744787. The reversal of 49744781 is 18744794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49744781 is a prime.

It is a super-2 number, since 2×49744781² = 4949086473475922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49744787) 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, 8705 + ... + 13238.

It is an arithmetic number, because the mean of its divisors is an integer number (12442248).

Almost surely, 2^49744781 is an apocalyptic number.

It is an amenable number.

49744781 is a deficient number, since it is larger than the sum of its proper divisors (24211).

49744781 is a wasteful number, since it uses less digits than its factorization.

49744781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24210.

The product of its digits is 225792, while the sum is 44.

The square root of 49744781 is about 7052.9980150288. The cubic root of 49744781 is about 367.7752570913.

The spelling of 49744781 in words is "forty-nine million, seven hundred forty-four thousand, seven hundred eighty-one".