49489740 has 36 divisors (see below), whose sum is σ = 150119424. Its totient is φ = 13197216.

The previous prime is 49489717. The next prime is 49489753. The reversal of 49489740 is 4798494.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137292 + ... + 137651.

It is an arithmetic number, because the mean of its divisors is an integer number (4169984).

Almost surely, 2^49489740 is an apocalyptic number.

It is an amenable number.

49489740 is an abundant number, since it is smaller than the sum of its proper divisors (100629684).

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

49489740 is a wasteful number, since it uses less digits than its factorization.

49489740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274958 (or 274953 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 49489740 is about 7034.8944554982. The cubic root of 49489740 is about 367.1456531698.

The spelling of 49489740 in words is "forty-nine million, four hundred eighty-nine thousand, seven hundred forty".