49138892 has 24 divisors (see below), whose sum is σ = 94303440. Its totient is φ = 22218560.

The previous prime is 49138867. The next prime is 49138907. The reversal of 49138892 is 29883194.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5834 + ... + 11502.

It is an arithmetic number, because the mean of its divisors is an integer number (3929310).

Almost surely, 2^49138892 is an apocalyptic number.

It is an amenable number.

49138892 is a deficient number, since it is larger than the sum of its proper divisors (45164548).

49138892 is a wasteful number, since it uses less digits than its factorization.

49138892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881 (or 5879 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 49138892 is about 7009.9138368456. The cubic root of 49138892 is about 366.2759919740.

The spelling of 49138892 in words is "forty-nine million, one hundred thirty-eight thousand, eight hundred ninety-two".