49040889 has 16 divisors (see below), whose sum is σ = 67388544. Its totient is φ = 31708800.

The previous prime is 49040863. The next prime is 49040891. The reversal of 49040889 is 98804094.

It is not a de Polignac number, because 49040889 - 2²⁰ = 47992313 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49040889.

It is not an unprimeable number, because it can be changed into a prime (49040839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11524 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (4211784).

Almost surely, 2^49040889 is an apocalyptic number.

It is an amenable number.

49040889 is a deficient number, since it is larger than the sum of its proper divisors (18347655).

49040889 is a wasteful number, since it uses less digits than its factorization.

49040889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 49040889 is about 7002.9200338145. The cubic root of 49040889 is about 366.0323286562.

The spelling of 49040889 in words is "forty-nine million, forty thousand, eight hundred eighty-nine".