4009993488 has 30 divisors (see below), whose sum is σ = 11222412734. Its totient is φ = 1336664448.

The previous prime is 4009993391. The next prime is 4009993501. The reversal of 4009993488 is 8843999004.

It can be written as a sum of positive squares in only one way, i.e., 3982619664 + 27373824 = 63108^2 + 5232^2 .

It is a super-2 number, since 2×4009993488² = 32160095547604812288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13923445 + ... + 13923732.

Almost surely, 2^4009993488 is an apocalyptic number.

4009993488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4009993488 is an abundant number, since it is smaller than the sum of its proper divisors (7212419246).

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

4009993488 is a wasteful number, since it uses less digits than its factorization.

4009993488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27847191 (or 27847182 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 4009993488 is about 63324.5093782810. The cubic root of 4009993488 is about 1588.7219253475.

The spelling of 4009993488 in words is "four billion, nine million, nine hundred ninety-three thousand, four hundred eighty-eight".