452434221 has 16 divisors (see below), whose sum is σ = 686622720. Its totient is φ = 294265440.

The previous prime is 452434207. The next prime is 452434231. The reversal of 452434221 is 122434254.

452434221 is a `hidden beast` number, since 4 + 5 + 2 + 434 + 221 = 666.

It is not a de Polignac number, because 452434221 - 2¹⁴ = 452417837 is a prime.

It is a super-3 number, since 3×452434221³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452434231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203245 + ... + 205458.

It is an arithmetic number, because the mean of its divisors is an integer number (42913920).

Almost surely, 2^452434221 is an apocalyptic number.

452434221 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

452434221 is a deficient number, since it is larger than the sum of its proper divisors (234188499).

452434221 is a wasteful number, since it uses less digits than its factorization.

452434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408753 (or 408747 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 452434221 is about 21270.5011929668. The cubic root of 452434221 is about 767.6887013509.

Adding to 452434221 its reverse (122434254), we get a palindrome (574868475).

The spelling of 452434221 in words is "four hundred fifty-two million, four hundred thirty-four thousand, two hundred twenty-one".