249670998 has 40 divisors (see below), whose sum is σ = 562446720. Its totient is φ = 82777680.

The previous prime is 249670997. The next prime is 249670999. The reversal of 249670998 is 899076942.

It is an interprime number because it is at equal distance from previous prime (249670997) and next prime (249670999).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249670997) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26908 + ... + 34976.

It is an arithmetic number, because the mean of its divisors is an integer number (14061168).

Almost surely, 2^249670998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249670998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281223360).

249670998 is an abundant number, since it is smaller than the sum of its proper divisors (312775722).

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

249670998 is a wasteful number, since it uses less digits than its factorization.

249670998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274 (or 8265 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 249670998 is about 15800.9809189177. The cubic root of 249670998 is about 629.6840592714.

The spelling of 249670998 in words is "two hundred forty-nine million, six hundred seventy thousand, nine hundred ninety-eight".