452444021 has 8 divisors (see below), whose sum is σ = 459232704. Its totient is φ = 445667040.

The previous prime is 452444009. The next prime is 452444053. The reversal of 452444021 is 120444254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 452444021 - 2¹⁰ = 452442997 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 (452444221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103145 + ... + 107441.

It is an arithmetic number, because the mean of its divisors is an integer number (57404088).

Almost surely, 2^452444021 is an apocalyptic number.

It is an amenable number.

452444021 is a deficient number, since it is larger than the sum of its proper divisors (6788683).

452444021 is a wasteful number, since it uses less digits than its factorization.

452444021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 452444021 is about 21270.7315577062. The cubic root of 452444021 is about 767.6942441787.

Adding to 452444021 its reverse (120444254), we get a palindrome (572888275).

The spelling of 452444021 in words is "four hundred fifty-two million, four hundred forty-four thousand, twenty-one".