243052402 has 4 divisors (see below), whose sum is σ = 364578606. Its totient is φ = 121526200.

The previous prime is 243052391. The next prime is 243052429. The reversal of 243052402 is 204250342.

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., 210801361 + 32251041 = 14519^2 + 5679^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60763099 + ... + 60763102.

Almost surely, 2^243052402 is an apocalyptic number.

243052402 is a deficient number, since it is larger than the sum of its proper divisors (121526204).

243052402 is a wasteful number, since it uses less digits than its factorization.

243052402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121526203.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 243052402 is about 15590.1379724491. The cubic root of 243052402 is about 624.0699998860.

The spelling of 243052402 in words is "two hundred forty-three million, fifty-two thousand, four hundred two".