452436021 has 6 divisors (see below), whose sum is σ = 653518710. Its totient is φ = 301624008.

The previous prime is 452435993. The next prime is 452436029. The reversal of 452436021 is 120634254.

452436021 is a `hidden beast` number, since 4 + 52 + 4 + 3 + 602 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 279224100 + 173211921 = 16710^2 + 13161^2 .

It is not a de Polignac number, because 452436021 - 2⁶ = 452435957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452436029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25135326 + ... + 25135343.

It is an arithmetic number, because the mean of its divisors is an integer number (108919785).

Almost surely, 2^452436021 is an apocalyptic number.

It is an amenable number.

452436021 is a deficient number, since it is larger than the sum of its proper divisors (201082689).

452436021 is a wasteful number, since it uses less digits than its factorization.

452436021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50270675 (or 50270672 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 452436021 is about 21270.5435050447. The cubic root of 452436021 is about 767.6897194273.

The spelling of 452436021 in words is "four hundred fifty-two million, four hundred thirty-six thousand, twenty-one".