243420707 has 8 divisors (see below), whose sum is σ = 254199840. Its totient is φ = 232657920.

The previous prime is 243420673. The next prime is 243420781. The reversal of 243420707 is 707024342.

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

It is a cyclic number.

It is not a de Polignac number, because 243420707 - 2¹² = 243416611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243420707.

It is not an unprimeable number, because it can be changed into a prime (243420787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34019 + ... + 40547.

It is an arithmetic number, because the mean of its divisors is an integer number (31774980).

Almost surely, 2^243420707 is an apocalyptic number.

243420707 is a deficient number, since it is larger than the sum of its proper divisors (10779133).

243420707 is a wasteful number, since it uses less digits than its factorization.

243420707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8173.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 243420707 is about 15601.9456158519. The cubic root of 243420707 is about 624.3850651400.

The spelling of 243420707 in words is "two hundred forty-three million, four hundred twenty thousand, seven hundred seven".