49863440 has 40 divisors (see below), whose sum is σ = 126474048. Its totient is φ = 18131840.

The previous prime is 49863439. The next prime is 49863449. The reversal of 49863440 is 4436894.

49863440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 49863394 and 49863403.

It is not an unprimeable number, because it can be changed into a prime (49863449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27452 + ... + 29211.

Almost surely, 2^49863440 is an apocalyptic number.

49863440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49863440 is an abundant number, since it is smaller than the sum of its proper divisors (76610608).

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

49863440 is a wasteful number, since it uses less digits than its factorization.

49863440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56687 (or 56681 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 49863440 is about 7061.4049593548. The cubic root of 49863440 is about 368.0674498293.

The spelling of 49863440 in words is "forty-nine million, eight hundred sixty-three thousand, four hundred forty".