1040321198 has 16 divisors (see below), whose sum is σ = 1787321184. Its totient is φ = 444873600.

The previous prime is 1040321197. The next prime is 1040321201. The reversal of 1040321198 is 8911230401.

It is a self number, because there is not a number n which added to its sum of digits gives 1040321198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040321197) 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, 74903 + ... + 87698.

It is an arithmetic number, because the mean of its divisors is an integer number (111707574).

Almost surely, 2^1040321198 is an apocalyptic number.

1040321198 is a deficient number, since it is larger than the sum of its proper divisors (746999986).

1040321198 is a wasteful number, since it uses less digits than its factorization.

1040321198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163067.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1040321198 is about 32254.0105723304. The cubic root of 1040321198 is about 1013.2636958965.

Adding to 1040321198 its reverse (8911230401), we get a palindrome (9951551599).

The spelling of 1040321198 in words is "one billion, forty million, three hundred twenty-one thousand, one hundred ninety-eight".