20041019 has 8 divisors (see below), whose sum is σ = 20367360. Its totient is φ = 19717416.

The previous prime is 20041003. The next prime is 20041031. The reversal of 20041019 is 91014002.

It is a happy number.

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 20041019 - 2⁴ = 20041003 is a prime.

It is a super-2 number, since 2×20041019² = 803284885116722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20040988 and 20041006.

It is not an unprimeable number, because it can be changed into a prime (20041039) 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, 17894 + ... + 18980.

It is an arithmetic number, because the mean of its divisors is an integer number (2545920).

Almost surely, 2^20041019 is an apocalyptic number.

20041019 is a deficient number, since it is larger than the sum of its proper divisors (326341).

20041019 is a wasteful number, since it uses less digits than its factorization.

20041019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 20041019 is about 4476.7196695795. The cubic root of 20041019 is about 271.6272060985.

The spelling of 20041019 in words is "twenty million, forty-one thousand, nineteen".