4018991356 has 24 divisors (see below), whose sum is σ = 7228447856. Its totient is φ = 1953797760.

The previous prime is 4018991341. The next prime is 4018991381. The reversal of 4018991356 is 6531998104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217720 + ... + 235456.

Almost surely, 2^4018991356 is an apocalyptic number.

It is an amenable number.

4018991356 is a deficient number, since it is larger than the sum of its proper divisors (3209456500).

4018991356 is a wasteful number, since it uses less digits than its factorization.

4018991356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309 (or 19307 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 4018991356 is about 63395.5152672490. The cubic root of 4018991356 is about 1589.9093280573.

The spelling of 4018991356 in words is "four billion, eighteen million, nine hundred ninety-one thousand, three hundred fifty-six".