1993190 has 16 divisors (see below), whose sum is σ = 3685392. Its totient is φ = 775584.

The previous prime is 1993163. The next prime is 1993193. The reversal of 1993190 is 913991.

1993190 = T₅₀₈ + T₅₀₉ + ... + T₅₂₂.

It is a super-2 number, since 2×1993190² = 7945612752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993193) 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, 2324 + ... + 3063.

It is an arithmetic number, because the mean of its divisors is an integer number (230337).

2^1993190 is an apocalyptic number.

1993190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1993190 is a deficient number, since it is larger than the sum of its proper divisors (1692202).

1993190 is a wasteful number, since it uses less digits than its factorization.

1993190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 1993190 is about 1411.8038107329. The cubic root of 1993190 is about 125.8489413364.

The spelling of 1993190 in words is "one million, nine hundred ninety-three thousand, one hundred ninety".