49000138 has 16 divisors (see below), whose sum is σ = 80668224. Its totient is φ = 22137760.

The previous prime is 49000123. The next prime is 49000199. The reversal of 49000138 is 83100094.

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, 2995 + ... + 10342.

It is an arithmetic number, because the mean of its divisors is an integer number (5041764).

Almost surely, 2^49000138 is an apocalyptic number.

49000138 is a deficient number, since it is larger than the sum of its proper divisors (31668086).

49000138 is a wasteful number, since it uses less digits than its factorization.

49000138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13517.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 49000138 is about 7000.0098571359. The cubic root of 49000138 is about 365.9309145286.

The spelling of 49000138 in words is "forty-nine million, one hundred thirty-eight", and thus it is an aban number.