49048640 has 28 divisors (see below), whose sum is σ = 116797836. Its totient is φ = 19619328.

The previous prime is 49048631. The next prime is 49048687. The reversal of 49048640 is 4684094.

It can be written as a sum of positive squares in 2 ways, for example, as 22505536 + 26543104 = 4744^2 + 5152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49048640.

It is an unprimeable number.

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, 76319 + ... + 76958.

Almost surely, 2^49048640 is an apocalyptic number.

49048640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49048640 is an abundant number, since it is smaller than the sum of its proper divisors (67749196).

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

49048640 is a wasteful number, since it uses less digits than its factorization.

49048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153294 (or 153284 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 49048640 is about 7003.4734239519. The cubic root of 49048640 is about 366.0516116612.

The spelling of 49048640 in words is "forty-nine million, forty-eight thousand, six hundred forty".