249969974 has 8 divisors (see below), whose sum is σ = 375791400. Its totient is φ = 124706176.

The previous prime is 249969971. The next prime is 249969977. The reversal of 249969974 is 479969942.

It is an interprime number because it is at equal distance from previous prime (249969971) and next prime (249969977).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249969971) 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 in 3 ways as a sum of consecutive naturals, for example, 138284 + ... + 140079.

It is an arithmetic number, because the mean of its divisors is an integer number (46973925).

Almost surely, 2^249969974 is an apocalyptic number.

249969974 is a deficient number, since it is larger than the sum of its proper divisors (125821426).

249969974 is a wasteful number, since it uses less digits than its factorization.

249969974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278814.

The product of its digits is 8817984, while the sum is 59.

The square root of 249969974 is about 15810.4387668401. The cubic root of 249969974 is about 629.9353036781.

The spelling of 249969974 in words is "two hundred forty-nine million, nine hundred sixty-nine thousand, nine hundred seventy-four".