451230222540 has 48 divisors (see below), whose sum is σ = 1297591781472. Its totient is φ = 117075949056.

The previous prime is 451230222533. The next prime is 451230222559. The reversal of 451230222540 is 45222032154.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 451230222498 and 451230222507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101626209 + ... + 101630648.

It is an arithmetic number, because the mean of its divisors is an integer number (27033162114).

Almost surely, 2^451230222540 is an apocalyptic number.

It is an amenable number.

451230222540 is an abundant number, since it is smaller than the sum of its proper divisors (846361558932).

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

451230222540 is a wasteful number, since it uses less digits than its factorization.

451230222540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203256906 (or 203256904 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 451230222540 its reverse (45222032154), we get a palindrome (496452254694).

The spelling of 451230222540 in words is "four hundred fifty-one billion, two hundred thirty million, two hundred twenty-two thousand, five hundred forty".