249058989 has 32 divisors (see below), whose sum is σ = 384048000. Its totient is φ = 159328512.

The previous prime is 249058987. The next prime is 249059003. The reversal of 249058989 is 989850942.

It is not a de Polignac number, because 249058989 - 2¹ = 249058987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249058987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139269 + ... + 141045.

It is an arithmetic number, because the mean of its divisors is an integer number (12001500).

Almost surely, 2^249058989 is an apocalyptic number.

249058989 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

249058989 is a deficient number, since it is larger than the sum of its proper divisors (134989011).

249058989 is a wasteful number, since it uses less digits than its factorization.

249058989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 249058989 is about 15781.6028653619. The cubic root of 249058989 is about 629.1691314573.

It can be divided in two parts, 249058 and 989, that added together give a cube (250047 = 63³).

The spelling of 249058989 in words is "two hundred forty-nine million, fifty-eight thousand, nine hundred eighty-nine".