890812442 has 8 divisors (see below), whose sum is σ = 1439004756. Its totient is φ = 411144192.

The previous prime is 890812411. The next prime is 890812451. The reversal of 890812442 is 244218098.

It can be written as a sum of positive squares in 2 ways, for example, as 887503681 + 3308761 = 29791^2 + 1819^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 890812396 and 890812405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17130983 + ... + 17131034.

Almost surely, 2^890812442 is an apocalyptic number.

890812442 is a deficient number, since it is larger than the sum of its proper divisors (548192314).

890812442 is a wasteful number, since it uses less digits than its factorization.

890812442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34262032.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 890812442 is about 29846.4812331370. The cubic root of 890812442 is about 962.1927747629.

The spelling of 890812442 in words is "eight hundred ninety million, eight hundred twelve thousand, four hundred forty-two".