451230340 has 48 divisors (see below), whose sum is σ = 1053259200. Its totient is φ = 160983680.

The previous prime is 451230319. The next prime is 451230341. The reversal of 451230340 is 43032154.

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

It is not an unprimeable number, because it can be changed into a prime (451230341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7690 + ... + 31009.

It is an arithmetic number, because the mean of its divisors is an integer number (21942900).

Almost surely, 2^451230340 is an apocalyptic number.

It is an amenable number.

451230340 is an abundant number, since it is smaller than the sum of its proper divisors (602028860).

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

451230340 is a wasteful number, since it uses less digits than its factorization.

451230340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38772 (or 38770 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 451230340 is about 21242.1830328241. The cubic root of 451230340 is about 767.0071829103.

Adding to 451230340 its reverse (43032154), we get a palindrome (494262494).

The spelling of 451230340 in words is "four hundred fifty-one million, two hundred thirty thousand, three hundred forty".