2005954278 has 8 divisors (see below), whose sum is σ = 4011908568. Its totient is φ = 668651424.

The previous prime is 2005954243. The next prime is 2005954289. The reversal of 2005954278 is 8724595002.

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

2005954278 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167162851 + ... + 167162862.

It is an arithmetic number, because the mean of its divisors is an integer number (501488571).

Almost surely, 2^2005954278 is an apocalyptic number.

2005954278 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.

2005954278 is a wasteful number, since it uses less digits than its factorization.

2005954278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334325718.

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

The square root of 2005954278 is about 44787.8809277688. The cubic root of 2005954278 is about 1261.1701311824.

The spelling of 2005954278 in words is "two billion, five million, nine hundred fifty-four thousand, two hundred seventy-eight".