49539140 has 48 divisors (see below), whose sum is σ = 119314944. Its totient is φ = 16924800.

The previous prime is 49539109. The next prime is 49539167. The reversal of 49539140 is 4193594.

49539140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 49539140.

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 15 ways as a sum of consecutive naturals, for example, 59930 + ... + 60750.

It is an arithmetic number, because the mean of its divisors is an integer number (2485728).

Almost surely, 2^49539140 is an apocalyptic number.

49539140 is the 5747-th pentagonal number.

It is an amenable number.

49539140 is an abundant number, since it is smaller than the sum of its proper divisors (69775804).

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

49539140 is a wasteful number, since it uses less digits than its factorization.

49539140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 49539140 is about 7038.4046487823. The cubic root of 49539140 is about 367.2677725149.

The spelling of 49539140 in words is "forty-nine million, five hundred thirty-nine thousand, one hundred forty".