240691968 has 108 divisors (see below), whose sum is σ = 757142568. Its totient is φ = 72929280.

The previous prime is 240691963. The next prime is 240691973. The reversal of 240691968 is 869196042.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (240691963) and next prime (240691973).

It is not an unprimeable number, because it can be changed into a prime (240691961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20596 + ... + 30092.

Almost surely, 2^240691968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240691968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378571284).

240691968 is an abundant number, since it is smaller than the sum of its proper divisors (516450600).

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

240691968 is a wasteful number, since it uses less digits than its factorization.

240691968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9530 (or 9513 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 240691968 is about 15514.2504814122. The cubic root of 240691968 is about 622.0431796273.

The spelling of 240691968 in words is "two hundred forty million, six hundred ninety-one thousand, nine hundred sixty-eight".