249248228 has 6 divisors (see below), whose sum is σ = 436184406. Its totient is φ = 124624112.

The previous prime is 249248227. The next prime is 249248287. The reversal of 249248228 is 822842942.

It can be written as a sum of positive squares in only one way, i.e., 217798564 + 31449664 = 14758^2 + 5608^2 .

It is a super-2 number, since 2×249248228² = 124249358322279968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249248221) 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 as a sum of consecutive naturals, namely, 31156025 + ... + 31156032.

It is an arithmetic number, because the mean of its divisors is an integer number (72697401).

Almost surely, 2^249248228 is an apocalyptic number.

It is an amenable number.

249248228 is a deficient number, since it is larger than the sum of its proper divisors (186936178).

249248228 is a wasteful number, since it uses less digits than its factorization.

249248228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62312061 (or 62312059 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 249248228 is about 15787.5972839441. The cubic root of 249248228 is about 629.3284420354.

The spelling of 249248228 in words is "two hundred forty-nine million, two hundred forty-eight thousand, two hundred twenty-eight".