20841002 has 32 divisors (see below), whose sum is σ = 38704512. Its totient is φ = 8195904.

The previous prime is 20840999. The next prime is 20841011. The reversal of 20841002 is 20014802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55688 + ... + 56060.

It is an arithmetic number, because the mean of its divisors is an integer number (1209516).

Almost surely, 2^20841002 is an apocalyptic number.

20841002 is a deficient number, since it is larger than the sum of its proper divisors (17863510).

20841002 is a wasteful number, since it uses less digits than its factorization.

20841002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 20841002 is about 4565.1946289288. The cubic root of 20841002 is about 275.1943617721.

Adding to 20841002 its reverse (20014802), we get a palindrome (40855804).

The spelling of 20841002 in words is "twenty million, eight hundred forty-one thousand, two".