451212004 has 12 divisors (see below), whose sum is σ = 793984828. Its totient is φ = 224359200.

The previous prime is 451212001. The next prime is 451212023. The reversal of 451212004 is 400212154.

It can be written as a sum of positive squares in 2 ways, for example, as 130873600 + 320338404 = 11440^2 + 17898^2 .

It is not an unprimeable number, because it can be changed into a prime (451212001) 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, 310887 + ... + 312334.

Almost surely, 2^451212004 is an apocalyptic number.

It is an amenable number.

451212004 is a deficient number, since it is larger than the sum of its proper divisors (342772824).

451212004 is a wasteful number, since it uses less digits than its factorization.

451212004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623406 (or 623404 counting only the distinct ones).

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

The square root of 451212004 is about 21241.7514343804. The cubic root of 451212004 is about 766.9967935127.

Adding to 451212004 its reverse (400212154), we get a palindrome (851424158).

The spelling of 451212004 in words is "four hundred fifty-one million, two hundred twelve thousand, four".