451533012 has 24 divisors (see below), whose sum is σ = 1204088256. Its totient is φ = 129009408.

The previous prime is 451533007. The next prime is 451533029. The reversal of 451533012 is 210335154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687613 + ... + 2687780.

It is an arithmetic number, because the mean of its divisors is an integer number (50170344).

Almost surely, 2^451533012 is an apocalyptic number.

451533012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

451533012 is an abundant number, since it is smaller than the sum of its proper divisors (752555244).

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

451533012 is a wasteful number, since it uses less digits than its factorization.

451533012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375407 (or 5375405 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 451533012 is about 21249.3061533783. The cubic root of 451533012 is about 767.1786398433.

Adding to 451533012 its reverse (210335154), we get a palindrome (661868166).

The spelling of 451533012 in words is "four hundred fifty-one million, five hundred thirty-three thousand, twelve".