3998372469 has 32 divisors (see below), whose sum is σ = 6622801920. Its totient is φ = 2089305792.

The previous prime is 3998372461. The next prime is 3998372473. The reversal of 3998372469 is 9642738993.

It is not a de Polignac number, because 3998372469 - 2³ = 3998372461 is a prime.

It is a super-2 number, since 2×3998372469² = 31973964801714311922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998372461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39229 + ... + 97650.

It is an arithmetic number, because the mean of its divisors is an integer number (206962560).

Almost surely, 2^3998372469 is an apocalyptic number.

3998372469 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3998372469 is a deficient number, since it is larger than the sum of its proper divisors (2624429451).

3998372469 is a wasteful number, since it uses less digits than its factorization.

3998372469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137009.

The product of its digits is 17635968, while the sum is 60.

The square root of 3998372469 is about 63232.6851319790. The cubic root of 3998372469 is about 1587.1857273931.

The spelling of 3998372469 in words is "three billion, nine hundred ninety-eight million, three hundred seventy-two thousand, four hundred sixty-nine".