260178978 has 8 divisors (see below), whose sum is σ = 520357968. Its totient is φ = 86726324.

The previous prime is 260178977. The next prime is 260178983. The reversal of 260178978 is 879871062.

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

260178978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (260178977) 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, 21681576 + ... + 21681587.

It is an arithmetic number, because the mean of its divisors is an integer number (65044746).

Almost surely, 2^260178978 is an apocalyptic number.

260178978 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.

260178978 is a wasteful number, since it uses less digits than its factorization.

260178978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43363168.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 260178978 is about 16130.0644140065. The cubic root of 260178978 is about 638.3968485831.

The spelling of 260178978 in words is "two hundred sixty million, one hundred seventy-eight thousand, nine hundred seventy-eight".