452778819 has 8 divisors (see below), whose sum is σ = 603895632. Its totient is φ = 301757280.

The previous prime is 452778817. The next prime is 452778829. The reversal of 452778819 is 918877254.

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

It is not a de Polignac number, because 452778819 - 2¹ = 452778817 is a prime.

It is a super-2 number, since 2×452778819² = 410017317870069522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (452778817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11872 + ... + 32349.

It is an arithmetic number, because the mean of its divisors is an integer number (75486954).

Almost surely, 2^452778819 is an apocalyptic number.

452778819 is a deficient number, since it is larger than the sum of its proper divisors (151116813).

452778819 is a wasteful number, since it uses less digits than its factorization.

452778819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47637.

The product of its digits is 1128960, while the sum is 51.

The square root of 452778819 is about 21278.6000244377. The cubic root of 452778819 is about 767.8835560897.

The spelling of 452778819 in words is "four hundred fifty-two million, seven hundred seventy-eight thousand, eight hundred nineteen".