243153960 has 64 divisors (see below), whose sum is σ = 833673600. Its totient is φ = 55577856.

The previous prime is 243153943. The next prime is 243154007. The reversal of 243153960 is 69351342.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143895 + ... + 145574.

It is an arithmetic number, because the mean of its divisors is an integer number (13026150).

Almost surely, 2^243153960 is an apocalyptic number.

243153960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243153960 is an abundant number, since it is smaller than the sum of its proper divisors (590519640).

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

243153960 is a wasteful number, since it uses less digits than its factorization.

243153960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289490 (or 289486 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 243153960 is about 15593.3947554726. The cubic root of 243153960 is about 624.1569090944.

The spelling of 243153960 in words is "two hundred forty-three million, one hundred fifty-three thousand, nine hundred sixty".