249415274 has 8 divisors (see below), whose sum is σ = 386191488. Its totient is φ = 120684780.

The previous prime is 249415267. The next prime is 249415301. The reversal of 249415274 is 472514942.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2011352 + ... + 2011475.

It is an arithmetic number, because the mean of its divisors is an integer number (48273936).

Almost surely, 2^249415274 is an apocalyptic number.

249415274 is a deficient number, since it is larger than the sum of its proper divisors (136776214).

249415274 is a wasteful number, since it uses less digits than its factorization.

249415274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022860.

The product of its digits is 80640, while the sum is 38.

The square root of 249415274 is about 15792.8868165386. The cubic root of 249415274 is about 629.4690024762.

It can be divided in two parts, 2494 and 15274, that multiplied together give a triangular number (38093356 = T₈₇₂₈).

The spelling of 249415274 in words is "two hundred forty-nine million, four hundred fifteen thousand, two hundred seventy-four".