4021043452 has 12 divisors (see below), whose sum is σ = 7186546080. Its totient is φ = 1967744576.

The previous prime is 4021043447. The next prime is 4021043479. The reversal of 4021043452 is 2543401204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10694077 + ... + 10694452.

It is an arithmetic number, because the mean of its divisors is an integer number (598878840).

Almost surely, 2^4021043452 is an apocalyptic number.

It is an amenable number.

4021043452 is a deficient number, since it is larger than the sum of its proper divisors (3165502628).

4021043452 is a wasteful number, since it uses less digits than its factorization.

4021043452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21388580 (or 21388578 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4021043452 is about 63411.6980690472. The cubic root of 4021043452 is about 1590.1798844514.

Adding to 4021043452 its reverse (2543401204), we get a palindrome (6564444656).

The spelling of 4021043452 in words is "four billion, twenty-one million, forty-three thousand, four hundred fifty-two".