243919034 has 4 divisors (see below), whose sum is σ = 365878554. Its totient is φ = 121959516.

The previous prime is 243919021. The next prime is 243919097. The reversal of 243919034 is 430919342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 210337009 + 33582025 = 14503^2 + 5795^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243918985 and 243919003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60979757 + ... + 60979760.

Almost surely, 2^243919034 is an apocalyptic number.

243919034 is a deficient number, since it is larger than the sum of its proper divisors (121959520).

243919034 is a wasteful number, since it uses less digits than its factorization.

243919034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121959519.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 243919034 is about 15617.9074782763. The cubic root of 243919034 is about 624.8108517758.

The spelling of 243919034 in words is "two hundred forty-three million, nine hundred nineteen thousand, thirty-four".