49040138 has 16 divisors (see below), whose sum is σ = 89014464. Its totient is φ = 19780800.

The previous prime is 49040077. The next prime is 49040177. The reversal of 49040138 is 83104094.

It is a self number, because there is not a number n which added to its sum of digits gives 49040138.

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, 102788 + ... + 103263.

It is an arithmetic number, because the mean of its divisors is an integer number (5563404).

Almost surely, 2^49040138 is an apocalyptic number.

49040138 is a deficient number, since it is larger than the sum of its proper divisors (39974326).

49040138 is a wasteful number, since it uses less digits than its factorization.

49040138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206077.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 49040138 is about 7002.8664131197. The cubic root of 49040138 is about 366.0304602039.

The spelling of 49040138 in words is "forty-nine million, forty thousand, one hundred thirty-eight".