249672026 has 8 divisors (see below), whose sum is σ = 375513204. Its totient is φ = 124500960.

The previous prime is 249672023. The next prime is 249672089. The reversal of 249672026 is 620276942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 246521401 + 3150625 = 15701^2 + 1775^2 .

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

It is a super-2 number, since 2×249672026² = 124672241133889352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249672023) 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, 166595 + ... + 168086.

Almost surely, 2^249672026 is an apocalyptic number.

249672026 is a deficient number, since it is larger than the sum of its proper divisors (125841178).

249672026 is a wasteful number, since it uses less digits than its factorization.

249672026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335056.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 249672026 is about 15801.0134485102. The cubic root of 249672026 is about 629.6849234945.

The spelling of 249672026 in words is "two hundred forty-nine million, six hundred seventy-two thousand, twenty-six".