243402402 has 8 divisors (see below), whose sum is σ = 486804816. Its totient is φ = 81134132.

The previous prime is 243402373. The next prime is 243402409. The reversal of 243402402 is 204204342.

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

243402402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (243402409) 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, 20283528 + ... + 20283539.

It is an arithmetic number, because the mean of its divisors is an integer number (60850602).

Almost surely, 2^243402402 is an apocalyptic number.

243402402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243402402 is a wasteful number, since it uses less digits than its factorization.

243402402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40567072.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 243402402 is about 15601.3589792684. The cubic root of 243402402 is about 624.3694136981.

Adding to 243402402 its reverse (204204342), we get a palindrome (447606744).

The spelling of 243402402 in words is "two hundred forty-three million, four hundred two thousand, four hundred two".