19900441 has 8 divisors (see below), whose sum is σ = 21855168. Its totient is φ = 17970000.

The previous prime is 19900417. The next prime is 19900459. The reversal of 19900441 is 14400991.

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 19900441 - 2²³ = 11511833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19900471) 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, 4330 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (2731896).

Almost surely, 2^19900441 is an apocalyptic number.

19900441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19900441 is the 2385-th centered heptagonal number.

It is an amenable number.

19900441 is a deficient number, since it is larger than the sum of its proper divisors (1954727).

19900441 is a wasteful number, since it uses less digits than its factorization.

19900441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 19900441 is about 4460.9910333916. The cubic root of 19900441 is about 270.9906043774.

The spelling of 19900441 in words is "nineteen million, nine hundred thousand, four hundred forty-one".