240552978 has 8 divisors (see below), whose sum is σ = 481105968. Its totient is φ = 80184324.

The previous prime is 240552973. The next prime is 240552989. The reversal of 240552978 is 879255042.

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

240552978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (240552973) 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, 20046076 + ... + 20046087.

It is an arithmetic number, because the mean of its divisors is an integer number (60138246).

Almost surely, 2^240552978 is an apocalyptic number.

240552978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240552978 is a wasteful number, since it uses less digits than its factorization.

240552978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40092168.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 240552978 is about 15509.7704044902. The cubic root of 240552978 is about 621.9234215404.

The spelling of 240552978 in words is "two hundred forty million, five hundred fifty-two thousand, nine hundred seventy-eight".