814061890 has 8 divisors (see below), whose sum is σ = 1465311420. Its totient is φ = 325624752.

The previous prime is 814061887. The next prime is 814061893. The reversal of 814061890 is 98160418.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (814061887) and next prime (814061893).

It can be written as a sum of positive squares in 2 ways, for example, as 782488729 + 31573161 = 27973^2 + 5619^2 .

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

It is not an unprimeable number, because it can be changed into a prime (814061893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40703085 + ... + 40703104.

Almost surely, 2^814061890 is an apocalyptic number.

814061890 is a deficient number, since it is larger than the sum of its proper divisors (651249530).

814061890 is a wasteful number, since it uses less digits than its factorization.

814061890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81406196.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 814061890 is about 28531.7698364472. The cubic root of 814061890 is about 933.7253317952.

The spelling of 814061890 in words is "eight hundred fourteen million, sixty-one thousand, eight hundred ninety".