451022401 has 4 divisors (see below), whose sum is σ = 451067904. Its totient is φ = 450976900.

The previous prime is 451022381. The next prime is 451022423. The reversal of 451022401 is 104220154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 451022401 - 2⁹ = 451021889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451022501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865 + ... + 30046.

It is an arithmetic number, because the mean of its divisors is an integer number (112766976).

Almost surely, 2^451022401 is an apocalyptic number.

It is an amenable number.

451022401 is a deficient number, since it is larger than the sum of its proper divisors (45503).

451022401 is a wasteful number, since it uses less digits than its factorization.

451022401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45502.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 451022401 is about 21237.2879859929. The cubic root of 451022401 is about 766.8893456714.

Adding to 451022401 its reverse (104220154), we get a palindrome (555242555).

The spelling of 451022401 in words is "four hundred fifty-one million, twenty-two thousand, four hundred one".