3990824251 has 8 divisors (see below), whose sum is σ = 4090429440. Its totient is φ = 3892284648.

The previous prime is 3990824219. The next prime is 3990824269. The reversal of 3990824251 is 1524280993.

3990824251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3990824251 - 2⁵ = 3990824219 is a prime.

It is a super-2 number, since 2×3990824251² = 31853356404739422002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3990824198 and 3990824207.

It is not an unprimeable number, because it can be changed into a prime (3990827251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258811 + ... + 273796.

It is an arithmetic number, because the mean of its divisors is an integer number (511303680).

Almost surely, 2^3990824251 is an apocalyptic number.

3990824251 is a deficient number, since it is larger than the sum of its proper divisors (99605189).

3990824251 is a wasteful number, since it uses less digits than its factorization.

3990824251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532793.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 3990824251 is about 63172.9708894556. The cubic root of 3990824251 is about 1586.1863231890.

The spelling of 3990824251 in words is "three billion, nine hundred ninety million, eight hundred twenty-four thousand, two hundred fifty-one".