20041002 has 48 divisors (see below), whose sum is σ = 44815680. Its totient is φ = 6470016.

The previous prime is 20040997. The next prime is 20041003. The reversal of 20041002 is 20014002.

It is a super-2 number, since 2×20041002² = 803283522328008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20041003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119923 + ... + 120089.

It is an arithmetic number, because the mean of its divisors is an integer number (933660).

Almost surely, 2^20041002 is an apocalyptic number.

20041002 is an abundant number, since it is smaller than the sum of its proper divisors (24774678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20041002 is a wasteful number, since it uses less digits than its factorization.

20041002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 20041002 is about 4476.7177708674. The cubic root of 20041002 is about 271.6271292949.

Adding to 20041002 its reverse (20014002), we get a palindrome (40055004).

Subtracting from 20041002 its reverse (20014002), we obtain a cube (27000 = 30³).

The spelling of 20041002 in words is "twenty million, forty-one thousand, two".