49531240 has 32 divisors (see below), whose sum is σ = 121577760. Its totient is φ = 18011200.

The previous prime is 49531219. The next prime is 49531243. The reversal of 49531240 is 4213594.

It is a junction number, because it is equal to n+sod(n) for n = 49531199 and 49531208.

It is not an unprimeable number, because it can be changed into a prime (49531243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55846 + ... + 56725.

It is an arithmetic number, because the mean of its divisors is an integer number (3799305).

Almost surely, 2^49531240 is an apocalyptic number.

49531240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49531240 is an abundant number, since it is smaller than the sum of its proper divisors (72046520).

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

49531240 is a wasteful number, since it uses less digits than its factorization.

49531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112593 (or 112589 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 49531240 is about 7037.8434196848. The cubic root of 49531240 is about 367.2482487629.

The spelling of 49531240 in words is "forty-nine million, five hundred thirty-one thousand, two hundred forty".