249081982 has 8 divisors (see below), whose sum is σ = 393287400. Its totient is φ = 117986184.

The previous prime is 249081949. The next prime is 249081997. The reversal of 249081982 is 289180942.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3277357 + ... + 3277432.

It is an arithmetic number, because the mean of its divisors is an integer number (49160925).

Almost surely, 2^249081982 is an apocalyptic number.

249081982 is a deficient number, since it is larger than the sum of its proper divisors (144205418).

249081982 is a wasteful number, since it uses less digits than its factorization.

249081982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6554810.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 249081982 is about 15782.3313233502. The cubic root of 249081982 is about 629.1884923869.

The spelling of 249081982 in words is "two hundred forty-nine million, eighty-one thousand, nine hundred eighty-two".