2254389978 has 32 divisors (see below), whose sum is σ = 4573532160. Its totient is φ = 740703600.

The previous prime is 2254389971. The next prime is 2254389979. The reversal of 2254389978 is 8799834522.

It is a happy number.

2254389978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2254389971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303003 + ... + 310353.

It is an arithmetic number, because the mean of its divisors is an integer number (142922880).

Almost surely, 2^2254389978 is an apocalyptic number.

2254389978 is an abundant number, since it is smaller than the sum of its proper divisors (2319142182).

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

2254389978 is a wasteful number, since it uses less digits than its factorization.

2254389978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8082.

The product of its digits is 8709120, while the sum is 57.

The square root of 2254389978 is about 47480.4167841859. The cubic root of 2254389978 is about 1311.2223654520. Note that the first 3 decimals are identical.

The spelling of 2254389978 in words is "two billion, two hundred fifty-four million, three hundred eighty-nine thousand, nine hundred seventy-eight".