19944085 has 8 divisors (see below), whose sum is σ = 27351936. Its totient is φ = 13675920.

The previous prime is 19944061. The next prime is 19944107. The reversal of 19944085 is 58044991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19944085 - 2¹³ = 19935893 is a prime.

It is a Duffinian number.

It is a congruent 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, 284881 + ... + 284950.

It is an arithmetic number, because the mean of its divisors is an integer number (3418992).

Almost surely, 2^19944085 is an apocalyptic number.

It is an amenable number.

19944085 is a deficient number, since it is larger than the sum of its proper divisors (7407851).

19944085 is an equidigital number, since it uses as much as digits as its factorization.

19944085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569843.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 19944085 is about 4465.8800924342. The cubic root of 19944085 is about 271.1885644523.

The spelling of 19944085 in words is "nineteen million, nine hundred forty-four thousand, eighty-five".