49644749 has 16 divisors (see below), whose sum is σ = 62079360. Its totient is φ = 38568960.

The previous prime is 49644731. The next prime is 49644767. The reversal of 49644749 is 94744694.

It is an interprime number because it is at equal distance from previous prime (49644731) and next prime (49644767).

It is a cyclic number.

It is not a de Polignac number, because 49644749 - 2⁸ = 49644493 is a prime.

It is a super-3 number, since 3×49644749³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49644719) 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, 32597 + ... + 34085.

It is an arithmetic number, because the mean of its divisors is an integer number (3879960).

Almost surely, 2^49644749 is an apocalyptic number.

It is an amenable number.

49644749 is a deficient number, since it is larger than the sum of its proper divisors (12434611).

49644749 is a wasteful number, since it uses less digits than its factorization.

49644749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940.

The product of its digits is 870912, while the sum is 47.

The square root of 49644749 is about 7045.9029939391. The cubic root of 49644749 is about 367.5285713668.

The spelling of 49644749 in words is "forty-nine million, six hundred forty-four thousand, seven hundred forty-nine".