240888978 has 60 divisors (see below), whose sum is σ = 593348910. Its totient is φ = 72990720.

The previous prime is 240888971. The next prime is 240889007. The reversal of 240888978 is 879888042.

It can be written as a sum of positive squares in only one way, i.e., 173369889 + 67519089 = 13167^2 + 8217^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (240888971) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13458 + ... + 25746.

Almost surely, 2^240888978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240888978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296674455).

240888978 is an abundant number, since it is smaller than the sum of its proper divisors (352459932).

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

240888978 is a wasteful number, since it uses less digits than its factorization.

240888978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325 (or 12305 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The square root of 240888978 is about 15520.5985065010. The cubic root of 240888978 is about 622.2128505793.

The spelling of 240888978 in words is "two hundred forty million, eight hundred eighty-eight thousand, nine hundred seventy-eight".