49409187 has 16 divisors (see below), whose sum is σ = 66769920. Its totient is φ = 32497472.

The previous prime is 49409179. The next prime is 49409189. The reversal of 49409187 is 78190494.

It is a cyclic number.

It is not a de Polignac number, because 49409187 - 2³ = 49409179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49409189) 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, 97978 + ... + 98480.

It is an arithmetic number, because the mean of its divisors is an integer number (4173120).

Almost surely, 2^49409187 is an apocalyptic number.

49409187 is a deficient number, since it is larger than the sum of its proper divisors (17360733).

49409187 is a wasteful number, since it uses less digits than its factorization.

49409187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 49409187 is about 7029.1668780873. The cubic root of 49409187 is about 366.9463475880.

The spelling of 49409187 in words is "forty-nine million, four hundred nine thousand, one hundred eighty-seven".