4002468421 has 12 divisors (see below), whose sum is σ = 4769494380. Its totient is φ = 3347010240.

The previous prime is 4002468397. The next prime is 4002468439. The reversal of 4002468421 is 1248642004.

It can be written as a sum of positive squares in 2 ways, for example, as 270602500 + 3731865921 = 16450^2 + 61089^2 .

It is not a de Polignac number, because 4002468421 - 2¹⁷ = 4002337349 is a prime.

It is a super-2 number, since 2×4002468421² = 32039506922204466482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002468121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 994126 + ... + 998143.

It is an arithmetic number, because the mean of its divisors is an integer number (397457865).

Almost surely, 2^4002468421 is an apocalyptic number.

4002468421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4002468421 is a deficient number, since it is larger than the sum of its proper divisors (767025959).

4002468421 is a wasteful number, since it uses less digits than its factorization.

4002468421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992324 (or 1992317 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 4002468421 is about 63265.0647751190. The cubic root of 4002468421 is about 1587.7275159975.

The spelling of 4002468421 in words is "four billion, two million, four hundred sixty-eight thousand, four hundred twenty-one".