249795386 has 8 divisors (see below), whose sum is σ = 387613620. Its totient is φ = 120590848.

The previous prime is 249795383. The next prime is 249795407. The reversal of 249795386 is 683597942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 236698225 + 13097161 = 15385^2 + 3619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (249795383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153351 + ... + 2153466.

Almost surely, 2^249795386 is an apocalyptic number.

249795386 is a deficient number, since it is larger than the sum of its proper divisors (137818234).

249795386 is a wasteful number, since it uses less digits than its factorization.

249795386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306848.

The product of its digits is 3265920, while the sum is 53.

The square root of 249795386 is about 15804.9165135410. The cubic root of 249795386 is about 629.7886130477.

The spelling of 249795386 in words is "two hundred forty-nine million, seven hundred ninety-five thousand, three hundred eighty-six".