4268252021 has 32 divisors (see below), whose sum is σ = 4830295680. Its totient is φ = 3738592000.

The previous prime is 4268251997. The next prime is 4268252039. The reversal of 4268252021 is 1202528624.

It is not a de Polignac number, because 4268252021 - 2¹⁸ = 4267989877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4268252041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10186550 + ... + 10186968.

It is an arithmetic number, because the mean of its divisors is an integer number (150946740).

Almost surely, 2^4268252021 is an apocalyptic number.

It is an amenable number.

4268252021 is a deficient number, since it is larger than the sum of its proper divisors (562043659).

4268252021 is a wasteful number, since it uses less digits than its factorization.

4268252021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 4268252021 is about 65331.8606883349. The cubic root of 4268252021 is about 1622.1213915542.

The spelling of 4268252021 in words is "four billion, two hundred sixty-eight million, two hundred fifty-two thousand, twenty-one".