20043470 has 8 divisors (see below), whose sum is σ = 36078264. Its totient is φ = 8017384.

The previous prime is 20043469. The next prime is 20043559. The reversal of 20043470 is 7434002.

It is a happy number.

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

It is a congruent number.

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, 1002164 + ... + 1002183.

It is an arithmetic number, because the mean of its divisors is an integer number (4509783).

Almost surely, 2^20043470 is an apocalyptic number.

20043470 is a deficient number, since it is larger than the sum of its proper divisors (16034794).

20043470 is a wasteful number, since it uses less digits than its factorization.

20043470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004354.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20043470 is about 4476.9934107613. The cubic root of 20043470 is about 271.6382789078.

Adding to 20043470 its reverse (7434002), we get a palindrome (27477472).

The spelling of 20043470 in words is "twenty million, forty-three thousand, four hundred seventy".