810149398 has 16 divisors (see below), whose sum is σ = 1286853120. Its totient is φ = 381454056.

The previous prime is 810149393. The next prime is 810149419. The reversal of 810149398 is 893941018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810149393) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57486 + ... + 70177.

It is an arithmetic number, because the mean of its divisors is an integer number (80428320).

Almost surely, 2^810149398 is an apocalyptic number.

810149398 is a deficient number, since it is larger than the sum of its proper divisors (476703722).

810149398 is a wasteful number, since it uses less digits than its factorization.

810149398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127851.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 810149398 is about 28463.1234758239. The cubic root of 810149398 is about 932.2270586732.

The spelling of 810149398 in words is "eight hundred ten million, one hundred forty-nine thousand, three hundred ninety-eight".