80198190 has 24 divisors (see below), whose sum is σ = 208515528. Its totient is φ = 21386160.

The previous prime is 80198189. The next prime is 80198191. The reversal of 80198190 is 9189108.

It is an interprime number because it is at equal distance from previous prime (80198189) and next prime (80198191).

It is a super-2 number, since 2×80198190² = 12863499358552200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80198191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445456 + ... + 445635.

It is an arithmetic number, because the mean of its divisors is an integer number (8688147).

Almost surely, 2^80198190 is an apocalyptic number.

80198190 is an abundant number, since it is smaller than the sum of its proper divisors (128317338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80198190 is a wasteful number, since it uses less digits than its factorization.

80198190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891104 (or 891101 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 80198190 is about 8955.3442144900. The cubic root of 80198190 is about 431.2424674173.

The spelling of 80198190 in words is "eighty million, one hundred ninety-eight thousand, one hundred ninety".