451425220 has 12 divisors (see below), whose sum is σ = 947993004. Its totient is φ = 180570080.

The previous prime is 451425179. The next prime is 451425229. The reversal of 451425220 is 22524154.

It can be written as a sum of positive squares in 2 ways, for example, as 66716224 + 384708996 = 8168^2 + 19614^2 .

It is not an unprimeable number, because it can be changed into a prime (451425229) 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, 11285611 + ... + 11285650.

It is an arithmetic number, because the mean of its divisors is an integer number (78999417).

Almost surely, 2^451425220 is an apocalyptic number.

It is an amenable number.

451425220 is an abundant number, since it is smaller than the sum of its proper divisors (496567784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451425220 is a wasteful number, since it uses less digits than its factorization.

451425220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22571270 (or 22571268 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 451425220 is about 21246.7696368177. The cubic root of 451425220 is about 767.1175868681.

Adding to 451425220 its reverse (22524154), we get a palindrome (473949374).

The spelling of 451425220 in words is "four hundred fifty-one million, four hundred twenty-five thousand, two hundred twenty".