49015840 has 24 divisors (see below), whose sum is σ = 115800300. Its totient is φ = 19606272.

The previous prime is 49015823. The next prime is 49015859. The reversal of 49015840 is 4851094.

It is a happy number.

49015840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48944016 + 71824 = 6996^2 + 268^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 153015 + ... + 153334.

Almost surely, 2^49015840 is an apocalyptic number.

49015840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49015840 is an abundant number, since it is smaller than the sum of its proper divisors (66784460).

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

49015840 is a wasteful number, since it uses less digits than its factorization.

49015840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306364 (or 306356 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 49015840 is about 7001.1313371483. The cubic root of 49015840 is about 365.9699976402.

The spelling of 49015840 in words is "forty-nine million, fifteen thousand, eight hundred forty".