20340004 has 12 divisors (see below), whose sum is σ = 37142784. Its totient is φ = 9727784.

The previous prime is 20339983. The next prime is 20340011. The reversal of 20340004 is 40004302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110452 + ... + 110635.

It is an arithmetic number, because the mean of its divisors is an integer number (3095232).

Almost surely, 2^20340004 is an apocalyptic number.

It is an amenable number.

20340004 is a deficient number, since it is larger than the sum of its proper divisors (16802780).

20340004 is a wasteful number, since it uses less digits than its factorization.

20340004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221114 (or 221112 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 20340004 is about 4509.9893569719. The cubic root of 20340004 is about 272.9713146386.

Adding to 20340004 its product of nonzero digits (96), we get a square (20340100 = 4510²).

Adding to 20340004 its reverse (40004302), we get a palindrome (60344306).

The spelling of 20340004 in words is "twenty million, three hundred forty thousand, four".