452840387 has 2 divisors, whose sum is σ = 452840388. Its totient is φ = 452840386.

The previous prime is 452840383. The next prime is 452840419. The reversal of 452840387 is 783048254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 452840387 - 2² = 452840383 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (452840383) by changing a digit.

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 as a sum of consecutive naturals, namely, 226420193 + 226420194.

It is an arithmetic number, because the mean of its divisors is an integer number (226420194).

Almost surely, 2^452840387 is an apocalyptic number.

452840387 is a deficient number, since it is larger than the sum of its proper divisors (1).

452840387 is an equidigital number, since it uses as much as digits as its factorization.

452840387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 452840387 is about 21280.0466869789. The cubic root of 452840387 is about 767.9183596259.

The spelling of 452840387 in words is "four hundred fifty-two million, eight hundred forty thousand, three hundred eighty-seven".