240363689 has 4 divisors (see below), whose sum is σ = 246226260. Its totient is φ = 234501120.

The previous prime is 240363631. The next prime is 240363707. The reversal of 240363689 is 986363042.

240363689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89491600 + 150872089 = 9460^2 + 12283^2 .

It is a cyclic number.

It is not a de Polignac number, because 240363689 - 2¹⁶ = 240298153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 5862529 = 240363689 / (2 + 4 + 0 + 3 + 6 + 3 + 6 + 8 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240363989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2931224 + ... + 2931305.

It is an arithmetic number, because the mean of its divisors is an integer number (61556565).

Almost surely, 2^240363689 is an apocalyptic number.

It is an amenable number.

240363689 is a deficient number, since it is larger than the sum of its proper divisors (5862571).

240363689 is an equidigital number, since it uses as much as digits as its factorization.

240363689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862570.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 240363689 is about 15503.6669533372. Note that the first 3 decimals coincide. The cubic root of 240363689 is about 621.7602500629.

The spelling of 240363689 in words is "two hundred forty million, three hundred sixty-three thousand, six hundred eighty-nine".