19198970 has 16 divisors (see below), whose sum is σ = 39495168. Its totient is φ = 6582480.

The previous prime is 19198969. The next prime is 19199023. The reversal of 19198970 is 7989191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137066 + ... + 137205.

It is an arithmetic number, because the mean of its divisors is an integer number (2468448).

Almost surely, 2^19198970 is an apocalyptic number.

19198970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19198970 is an abundant number, since it is smaller than the sum of its proper divisors (20296198).

19198970 is a wasteful number, since it uses less digits than its factorization.

19198970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274285.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 19198970 is about 4381.6629263329. The cubic root of 19198970 is about 267.7683916421.

The spelling of 19198970 in words is "nineteen million, one hundred ninety-eight thousand, nine hundred seventy".