49753840 has 20 divisors (see below), whose sum is σ = 115677864. Its totient is φ = 19901504.

The previous prime is 49753831. The next prime is 49753843. The reversal of 49753840 is 4835794.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 49753793 and 49753802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49753843) 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, 310882 + ... + 311041.

Almost surely, 2^49753840 is an apocalyptic number.

49753840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49753840 is an abundant number, since it is smaller than the sum of its proper divisors (65924024).

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

49753840 is a wasteful number, since it uses less digits than its factorization.

49753840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621936 (or 621930 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 49753840 is about 7053.6401949632. The cubic root of 49753840 is about 367.7975808659.

The spelling of 49753840 in words is "forty-nine million, seven hundred fifty-three thousand, eight hundred forty".