249374889 has 16 divisors (see below), whose sum is σ = 370296000. Its totient is φ = 165866688.

The previous prime is 249374861. The next prime is 249374897. The reversal of 249374889 is 988473942.

249374889 is a `hidden beast` number, since 2 + 493 + 74 + 8 + 89 = 666.

It is not a de Polignac number, because 249374889 - 2¹¹ = 249372841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249374849) 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, 1537 + ... + 22385.

It is an arithmetic number, because the mean of its divisors is an integer number (23143500).

Almost surely, 2^249374889 is an apocalyptic number.

It is an amenable number.

249374889 is a deficient number, since it is larger than the sum of its proper divisors (120921111).

249374889 is a wasteful number, since it uses less digits than its factorization.

249374889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21301 (or 21295 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 249374889 is about 15791.6081828293. The cubic root of 249374889 is about 629.4350263722.

The spelling of 249374889 in words is "two hundred forty-nine million, three hundred seventy-four thousand, eight hundred eighty-nine".