2304378978 has 16 divisors (see below), whose sum is σ = 5027736096. Its totient is φ = 698296640.

The previous prime is 2304378971. The next prime is 2304378983. The reversal of 2304378978 is 8798734032.

It is a self number, because there is not a number n which added to its sum of digits gives 2304378978.

It is not an unprimeable number, because it can be changed into a prime (2304378971) 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 7 ways as a sum of consecutive naturals, for example, 17457351 + ... + 17457482.

It is an arithmetic number, because the mean of its divisors is an integer number (314233506).

Almost surely, 2^2304378978 is an apocalyptic number.

2304378978 is an abundant number, since it is smaller than the sum of its proper divisors (2723357118).

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

2304378978 is a wasteful number, since it uses less digits than its factorization.

2304378978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34914849.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 2304378978 is about 48003.9475251776. The cubic root of 2304378978 is about 1320.8433121262.

The spelling of 2304378978 in words is "two billion, three hundred four million, three hundred seventy-eight thousand, nine hundred seventy-eight".