243402260 has 24 divisors (see below), whose sum is σ = 541212840. Its totient is φ = 91633664.

The previous prime is 243402253. The next prime is 243402301. The reversal of 243402260 is 62204342.

It can be written as a sum of positive squares in 4 ways, for example, as 77404804 + 165997456 = 8798^2 + 12884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357605 + ... + 358284.

It is an arithmetic number, because the mean of its divisors is an integer number (22550535).

Almost surely, 2^243402260 is an apocalyptic number.

243402260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243402260 is an abundant number, since it is smaller than the sum of its proper divisors (297810580).

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

243402260 is a wasteful number, since it uses less digits than its factorization.

243402260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715915 (or 715913 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 243402260 is about 15601.3544283822. The cubic root of 243402260 is about 624.3692922799.

The spelling of 243402260 in words is "two hundred forty-three million, four hundred two thousand, two hundred sixty".