243929634 has 32 divisors (see below), whose sum is σ = 556295040. Its totient is φ = 70639872.

The previous prime is 243929629. The next prime is 243929639. The reversal of 243929634 is 436929342.

It is an interprime number because it is at equal distance from previous prime (243929629) and next prime (243929639).

It is not an unprimeable number, because it can be changed into a prime (243929639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90654 + ... + 93305.

It is an arithmetic number, because the mean of its divisors is an integer number (17384220).

Almost surely, 2^243929634 is an apocalyptic number.

243929634 is an abundant number, since it is smaller than the sum of its proper divisors (312365406).

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

243929634 is a wasteful number, since it uses less digits than its factorization.

243929634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183994.

The product of its digits is 279936, while the sum is 42.

The square root of 243929634 is about 15618.2468286296. The cubic root of 243929634 is about 624.8199024555.

The spelling of 243929634 in words is "two hundred forty-three million, nine hundred twenty-nine thousand, six hundred thirty-four".