4054421979 has 16 divisors (see below), whose sum is σ = 6024711040. Its totient is φ = 2694776040.

The previous prime is 4054421947. The next prime is 4054421983. The reversal of 4054421979 is 9791244504.

It is not a de Polignac number, because 4054421979 - 2⁵ = 4054421947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4054421929) 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, 217897 + ... + 235770.

It is an arithmetic number, because the mean of its divisors is an integer number (376544440).

Almost surely, 2^4054421979 is an apocalyptic number.

4054421979 is a deficient number, since it is larger than the sum of its proper divisors (1970289061).

4054421979 is a wasteful number, since it uses less digits than its factorization.

4054421979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454007 (or 454001 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 4054421979 is about 63674.3431768244. The cubic root of 4054421979 is about 1594.5677728725.

The spelling of 4054421979 in words is "four billion, fifty-four million, four hundred twenty-one thousand, nine hundred seventy-nine".