4020379788 has 12 divisors (see below), whose sum is σ = 9380886200. Its totient is φ = 1340126592.

The previous prime is 4020379777. The next prime is 4020379789. The reversal of 4020379788 is 8879730204.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4020379789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167515813 + ... + 167515836.

Almost surely, 2^4020379788 is an apocalyptic number.

It is an amenable number.

4020379788 is an abundant number, since it is smaller than the sum of its proper divisors (5360506412).

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

4020379788 is a wasteful number, since it uses less digits than its factorization.

4020379788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335031656 (or 335031654 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 4020379788 is about 63406.4648754368. The cubic root of 4020379788 is about 1590.0923944568.

The spelling of 4020379788 in words is "four billion, twenty million, three hundred seventy-nine thousand, seven hundred eighty-eight".