19903441 has 8 divisors (see below), whose sum is σ = 20900160. Its totient is φ = 18917712.

The previous prime is 19903439. The next prime is 19903451. The reversal of 19903441 is 14430991.

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

It is a cyclic number.

It is not a de Polignac number, because 19903441 - 2¹ = 19903439 is a prime.

It is a super-2 number, since 2×19903441² = 792293927280962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19903421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (2612520).

Almost surely, 2^19903441 is an apocalyptic number.

It is an amenable number.

19903441 is a deficient number, since it is larger than the sum of its proper divisors (996719).

19903441 is a wasteful number, since it uses less digits than its factorization.

19903441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 19903441 is about 4461.3272688741. The cubic root of 19903441 is about 271.0042210097.

The spelling of 19903441 in words is "nineteen million, nine hundred three thousand, four hundred forty-one".