20261002 has 8 divisors (see below), whose sum is σ = 30412800. Its totient is φ = 10123404.

The previous prime is 20260997. The next prime is 20261009. The reversal of 20261002 is 20016202.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20261009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399 + ... + 6517.

It is an arithmetic number, because the mean of its divisors is an integer number (3801600).

Almost surely, 2^20261002 is an apocalyptic number.

20261002 is a deficient number, since it is larger than the sum of its proper divisors (10151798).

20261002 is a wasteful number, since it uses less digits than its factorization.

20261002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7100.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20261002 is about 4501.2222784484. Note that the first 4 decimals coincide. The cubic root of 20261002 is about 272.6174428538.

Adding to 20261002 its reverse (20016202), we get a palindrome (40277204).

The spelling of 20261002 in words is "twenty million, two hundred sixty-one thousand, two".