20470364 has 12 divisors (see below), whose sum is σ = 35933688. Its totient is φ = 10203600.

The previous prime is 20470343. The next prime is 20470369. The reversal of 20470364 is 46307402.

It is a happy number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20470369) 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, 6407 + ... + 9054.

It is an arithmetic number, because the mean of its divisors is an integer number (2994474).

Almost surely, 2^20470364 is an apocalyptic number.

It is an amenable number.

20470364 is a deficient number, since it is larger than the sum of its proper divisors (15463324).

20470364 is a wasteful number, since it uses less digits than its factorization.

20470364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15796 (or 15794 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20470364 is about 4524.4186366869. The cubic root of 20470364 is about 273.5532350278.

Adding to 20470364 its reverse (46307402), we get a palindrome (66777766).

The spelling of 20470364 in words is "twenty million, four hundred seventy thousand, three hundred sixty-four".