20344002 has 32 divisors (see below), whose sum is σ = 49237632. Its totient is φ = 5470464.

The previous prime is 20343991. The next prime is 20344007. The reversal of 20344002 is 20044302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20344007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13533 + ... + 14960.

It is an arithmetic number, because the mean of its divisors is an integer number (1538676).

Almost surely, 2^20344002 is an apocalyptic number.

20344002 is an abundant number, since it is smaller than the sum of its proper divisors (28893630).

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

20344002 is a wasteful number, since it uses less digits than its factorization.

20344002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28522.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20344002 is about 4510.4325734900. The cubic root of 20344002 is about 272.9891984080.

Adding to 20344002 its reverse (20044302), we get a palindrome (40388304).

The spelling of 20344002 in words is "twenty million, three hundred forty-four thousand, two".