249984834 has 16 divisors (see below), whose sum is σ = 545421600. Its totient is φ = 75752960.

The previous prime is 249984821. The next prime is 249984853. The reversal of 249984834 is 438489942.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893759 + ... + 1893890.

It is an arithmetic number, because the mean of its divisors is an integer number (34088850).

Almost surely, 2^249984834 is an apocalyptic number.

249984834 is an abundant number, since it is smaller than the sum of its proper divisors (295436766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249984834 is a wasteful number, since it uses less digits than its factorization.

249984834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787665.

The product of its digits is 1990656, while the sum is 51.

The square root of 249984834 is about 15810.9087025383. The cubic root of 249984834 is about 629.9477860481.

The spelling of 249984834 in words is "two hundred forty-nine million, nine hundred eighty-four thousand, eight hundred thirty-four".