19993354 has 16 divisors (see below), whose sum is σ = 31340520. Its totient is φ = 9553600.

The previous prime is 19993327. The next prime is 19993361. The reversal of 19993354 is 45339991.

It can be written as a sum of positive squares in 4 ways, for example, as 19316025 + 677329 = 4395^2 + 823^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19993354.

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, 4152 + ... + 7564.

Almost surely, 2^19993354 is an apocalyptic number.

19993354 is a deficient number, since it is larger than the sum of its proper divisors (11347166).

19993354 is a wasteful number, since it uses less digits than its factorization.

19993354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545.

The product of its digits is 131220, while the sum is 43.

The square root of 19993354 is about 4471.3928478719. The cubic root of 19993354 is about 271.4116916294.

The spelling of 19993354 in words is "nineteen million, nine hundred ninety-three thousand, three hundred fifty-four".