451205340 has 48 divisors (see below), whose sum is σ = 1279380480. Its totient is φ = 118797120.

The previous prime is 451205323. The next prime is 451205351. The reversal of 451205340 is 43502154.

It is a self number, because there is not a number n which added to its sum of digits gives 451205340.

It is a congruent number.

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, 42856 + ... + 52335.

It is an arithmetic number, because the mean of its divisors is an integer number (26653760).

Almost surely, 2^451205340 is an apocalyptic number.

It is an amenable number.

451205340 is an abundant number, since it is smaller than the sum of its proper divisors (828175140).

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

451205340 is a wasteful number, since it uses less digits than its factorization.

451205340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95282 (or 95280 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 451205340 is about 21241.5945729128. The cubic root of 451205340 is about 766.9930175406.

Adding to 451205340 its reverse (43502154), we get a palindrome (494707494).

The spelling of 451205340 in words is "four hundred fifty-one million, two hundred five thousand, three hundred forty".