49565440 has 36 divisors (see below), whose sum is σ = 118727784. Its totient is φ = 19825664.

The previous prime is 49565429. The next prime is 49565443. The reversal of 49565440 is 4456594.

It is a self number, because there is not a number n which added to its sum of digits gives 49565440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49565443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18082 + ... + 20641.

It is an arithmetic number, because the mean of its divisors is an integer number (3297994).

Almost surely, 2^49565440 is an apocalyptic number.

49565440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49565440 is an abundant number, since it is smaller than the sum of its proper divisors (69162344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49565440 is an equidigital number, since it uses as much as digits as its factorization.

49565440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38744 (or 38730 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 49565440 is about 7040.2727219902. The cubic root of 49565440 is about 367.3327543561.

It can be divided in two parts, 49565 and 440, that added together give a palindrome (50005).

The spelling of 49565440 in words is "forty-nine million, five hundred sixty-five thousand, four hundred forty".