2954990978 has 8 divisors (see below), whose sum is σ = 4432719168. Its totient is φ = 1477417924.

The previous prime is 2954990963. The next prime is 2954991007. The reversal of 2954990978 is 8790994592.

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

It is a super-2 number, since 2×2954990978² = 17463943360122792968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2954990978.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 45275 + ... + 89217.

It is an arithmetic number, because the mean of its divisors is an integer number (554089896).

Almost surely, 2^2954990978 is an apocalyptic number.

2954990978 is a deficient number, since it is larger than the sum of its proper divisors (1477728190).

2954990978 is a wasteful number, since it uses less digits than its factorization.

2954990978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77568.

The product of its (nonzero) digits is 14696640, while the sum is 62.

The square root of 2954990978 is about 54359.8287156978. The cubic root of 2954990978 is about 1435.0005022924. Note that the first 3 decimals are identical.

The spelling of 2954990978 in words is "two billion, nine hundred fifty-four million, nine hundred ninety thousand, nine hundred seventy-eight".