249500190 has 64 divisors (see below), whose sum is σ = 615859200. Its totient is φ = 64654464.

The previous prime is 249500189. The next prime is 249500201. The reversal of 249500190 is 91005942.

It is a happy number.

It is a super-2 number, since 2×249500190² = 124500689620072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346651 + ... + 347369.

It is an arithmetic number, because the mean of its divisors is an integer number (9622800).

Almost surely, 2^249500190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249500190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307929600).

249500190 is an abundant number, since it is smaller than the sum of its proper divisors (366359010).

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

249500190 is a wasteful number, since it uses less digits than its factorization.

249500190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 249500190 is about 15795.5750132751. The cubic root of 249500190 is about 629.5404307733.

The spelling of 249500190 in words is "two hundred forty-nine million, five hundred thousand, one hundred ninety".