249970834 has 8 divisors (see below), whose sum is σ = 380092860. Its totient is φ = 123273216.

The previous prime is 249970823. The next prime is 249970837. The reversal of 249970834 is 438079942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 249166225 + 804609 = 15785^2 + 897^2 .

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

It is not an unprimeable number, because it can be changed into a prime (249970837) 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, 855919 + ... + 856210.

Almost surely, 2^249970834 is an apocalyptic number.

249970834 is a deficient number, since it is larger than the sum of its proper divisors (130122026).

249970834 is a wasteful number, since it uses less digits than its factorization.

249970834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712204.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 249970834 is about 15810.4659640379. The cubic root of 249970834 is about 629.9360260898.

The spelling of 249970834 in words is "two hundred forty-nine million, nine hundred seventy thousand, eight hundred thirty-four".