808464442 has 8 divisors (see below), whose sum is σ = 1214198100. Its totient is φ = 403731744.

The previous prime is 808464439. The next prime is 808464443. The reversal of 808464442 is 244464808.

It can be written as a sum of positive squares in 2 ways, for example, as 799814961 + 8649481 = 28281^2 + 2941^2 .

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

It is a super-2 number, since 2×808464442² = 1307229507956742728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 808464395 and 808464404.

It is not an unprimeable number, because it can be changed into a prime (808464443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248217 + ... + 251452.

Almost surely, 2^808464442 is an apocalyptic number.

808464442 is a deficient number, since it is larger than the sum of its proper divisors (405733658).

808464442 is a wasteful number, since it uses less digits than its factorization.

808464442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500480.

The product of its (nonzero) digits is 196608, while the sum is 40.

The square root of 808464442 is about 28433.5091397457. The cubic root of 808464442 is about 931.5803253665.

The spelling of 808464442 in words is "eight hundred eight million, four hundred sixty-four thousand, four hundred forty-two".