20004354 has 16 divisors (see below), whose sum is σ = 44454240. Its totient is φ = 6668100.

The previous prime is 20004343. The next prime is 20004367. The reversal of 20004354 is 45340002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185172 + ... + 185279.

It is an arithmetic number, because the mean of its divisors is an integer number (2778390).

Almost surely, 2^20004354 is an apocalyptic number.

20004354 is an abundant number, since it is smaller than the sum of its proper divisors (24449886).

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

20004354 is a wasteful number, since it uses less digits than its factorization.

20004354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370462 (or 370456 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20004354 is about 4472.6227205075. The cubic root of 20004354 is about 271.4614578541.

Adding to 20004354 its reverse (45340002), we get a palindrome (65344356).

The spelling of 20004354 in words is "twenty million, four thousand, three hundred fifty-four".