240009690 has 16 divisors (see below), whose sum is σ = 576023328. Its totient is φ = 64002576.

The previous prime is 240009643. The next prime is 240009701. The reversal of 240009690 is 96900042.

240009690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240009690² = 115209302587792200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 8000323 = 240009690 / (2 + 4 + 0 + 0 + 0 + 9 + 6 + 9 + 0).

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, 4000132 + ... + 4000191.

It is an arithmetic number, because the mean of its divisors is an integer number (36001458).

Almost surely, 2^240009690 is an apocalyptic number.

240009690 is an abundant number, since it is smaller than the sum of its proper divisors (336013638).

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

240009690 is a wasteful number, since it uses less digits than its factorization.

240009690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000333.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 240009690 is about 15492.2461250782. The cubic root of 240009690 is about 621.4548647124.

The spelling of 240009690 in words is "two hundred forty million, nine thousand, six hundred ninety".