451005412 has 48 divisors (see below), whose sum is σ = 949906944. Its totient is φ = 184608000.

The previous prime is 451005409. The next prime is 451005421. The reversal of 451005412 is 214500154.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13837 + ... + 33067.

It is an arithmetic number, because the mean of its divisors is an integer number (19789728).

Almost surely, 2^451005412 is an apocalyptic number.

It is an amenable number.

451005412 is an abundant number, since it is smaller than the sum of its proper divisors (498901532).

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

451005412 is a wasteful number, since it uses less digits than its factorization.

451005412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19300 (or 19298 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 451005412 is about 21236.8880017765. Note that the first 3 decimals coincide. The cubic root of 451005412 is about 766.8797165512.

Adding to 451005412 its reverse (214500154), we get a palindrome (665505566).

The spelling of 451005412 in words is "four hundred fifty-one million, five thousand, four hundred twelve".