243422904 has 32 divisors (see below), whose sum is σ = 623402640. Its totient is φ = 79161600.

The previous prime is 243422899. The next prime is 243422909. The reversal of 243422904 is 409224342.

It is an interprime number because it is at equal distance from previous prime (243422899) and next prime (243422909).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243422909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122707 + ... + 124674.

Almost surely, 2^243422904 is an apocalyptic number.

243422904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243422904 is an abundant number, since it is smaller than the sum of its proper divisors (379979736).

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

243422904 is a wasteful number, since it uses less digits than its factorization.

243422904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247431 (or 247427 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 243422904 is about 15602.0160235785. The cubic root of 243422904 is about 624.3869436022.

The spelling of 243422904 in words is "two hundred forty-three million, four hundred twenty-two thousand, nine hundred four".