249249066 has 32 divisors (see below), whose sum is σ = 549436608. Its totient is φ = 74749440.

The previous prime is 249249043. The next prime is 249249067. The reversal of 249249066 is 660942942.

It is not an unprimeable number, because it can be changed into a prime (249249067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13065 + ... + 25868.

It is an arithmetic number, because the mean of its divisors is an integer number (17169894).

Almost surely, 2^249249066 is an apocalyptic number.

249249066 is an abundant number, since it is smaller than the sum of its proper divisors (300187542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249249066 is a wasteful number, since it uses less digits than its factorization.

249249066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39046.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 249249066 is about 15787.6238237424. The cubic root of 249249066 is about 629.3291473251.

The spelling of 249249066 in words is "two hundred forty-nine million, two hundred forty-nine thousand, sixty-six".