451623316 has 6 divisors (see below), whose sum is σ = 790340810. Its totient is φ = 225811656.

The previous prime is 451623311. The next prime is 451623317. The reversal of 451623316 is 613326154.

It can be written as a sum of positive squares in only one way, i.e., 443523600 + 8099716 = 21060^2 + 2846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451623311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56452911 + ... + 56452918.

Almost surely, 2^451623316 is an apocalyptic number.

It is an amenable number.

451623316 is a deficient number, since it is larger than the sum of its proper divisors (338717494).

451623316 is a wasteful number, since it uses less digits than its factorization.

451623316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112905833 (or 112905831 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 451623316 is about 21251.4309165289. The cubic root of 451623316 is about 767.2297802030.

The spelling of 451623316 in words is "four hundred fifty-one million, six hundred twenty-three thousand, three hundred sixteen".