20347364 has 24 divisors (see below), whose sum is σ = 37722048. Its totient is φ = 9583200.

The previous prime is 20347361. The next prime is 20347409. The reversal of 20347364 is 46374302.

It is a happy number.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20347361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 7814.

It is an arithmetic number, because the mean of its divisors is an integer number (1571752).

Almost surely, 2^20347364 is an apocalyptic number.

It is an amenable number.

20347364 is a deficient number, since it is larger than the sum of its proper divisors (17374684).

20347364 is a wasteful number, since it uses less digits than its factorization.

20347364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395 (or 3393 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 20347364 is about 4510.8052496201. The cubic root of 20347364 is about 273.0042354220.

The spelling of 20347364 in words is "twenty million, three hundred forty-seven thousand, three hundred sixty-four".