452780646 has 8 divisors (see below), whose sum is σ = 905561304. Its totient is φ = 150926880.

The previous prime is 452780641. The next prime is 452780651. The reversal of 452780646 is 646087254.

It is an interprime number because it is at equal distance from previous prime (452780641) and next prime (452780651).

It is a sphenic number, since it is the product of 3 distinct primes.

452780646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 452780598 and 452780607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452780641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37731715 + ... + 37731726.

It is an arithmetic number, because the mean of its divisors is an integer number (113195163).

Almost surely, 2^452780646 is an apocalyptic number.

452780646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

452780646 is a wasteful number, since it uses less digits than its factorization.

452780646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75463446.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 452780646 is about 21278.6429548503. The cubic root of 452780646 is about 767.8845889129.

The spelling of 452780646 in words is "four hundred fifty-two million, seven hundred eighty thousand, six hundred forty-six".