19995330 has 16 divisors (see below), whose sum is σ = 47988864. Its totient is φ = 5332080.

The previous prime is 19995329. The next prime is 19995343. The reversal of 19995330 is 3359991.

It is a Curzon number.

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, 333226 + ... + 333285.

It is an arithmetic number, because the mean of its divisors is an integer number (2999304).

Almost surely, 2^19995330 is an apocalyptic number.

19995330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19995330 is an abundant number, since it is smaller than the sum of its proper divisors (27993534).

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

19995330 is a wasteful number, since it uses less digits than its factorization.

19995330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666521.

The product of its (nonzero) digits is 32805, while the sum is 39.

The square root of 19995330 is about 4471.6138026444. The cubic root of 19995330 is about 271.4206327978.

The spelling of 19995330 in words is "nineteen million, nine hundred ninety-five thousand, three hundred thirty".