243406432 has 12 divisors (see below), whose sum is σ = 479206476. Its totient is φ = 121703200.

The previous prime is 243406421. The next prime is 243406453. The reversal of 243406432 is 234604342.

It is a super-2 number, since 2×243406432² = 118493382277941248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243406432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3803194 + ... + 3803257.

It is an arithmetic number, because the mean of its divisors is an integer number (39933873).

Almost surely, 2^243406432 is an apocalyptic number.

It is an amenable number.

243406432 is a deficient number, since it is larger than the sum of its proper divisors (235800044).

243406432 is an equidigital number, since it uses as much as digits as its factorization.

243406432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606461 (or 7606453 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 243406432 is about 15601.4881341493. The cubic root of 243406432 is about 624.3728595623.

The spelling of 243406432 in words is "two hundred forty-three million, four hundred six thousand, four hundred thirty-two".