451144228 has 24 divisors (see below), whose sum is σ = 796436480. Its totient is φ = 223598880.

The previous prime is 451144217. The next prime is 451144229. The reversal of 451144228 is 822441154.

It is a super-2 number, since 2×451144228² = 407062228915431968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 451144228.

It is not an unprimeable number, because it can be changed into a prime (451144229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352093 + ... + 353371.

Almost surely, 2^451144228 is an apocalyptic number.

It is an amenable number.

451144228 is a deficient number, since it is larger than the sum of its proper divisors (345292252).

451144228 is a wasteful number, since it uses less digits than its factorization.

451144228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987 (or 1985 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 451144228 is about 21240.1560257923. The cubic root of 451144228 is about 766.9583883748.

The spelling of 451144228 in words is "four hundred fifty-one million, one hundred forty-four thousand, two hundred twenty-eight".