20346892 has 24 divisors (see below), whose sum is σ = 38725344. Its totient is φ = 9315072.

The previous prime is 20346889. The next prime is 20346899. The reversal of 20346892 is 29864302.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (20346899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1528 + ... + 6559.

It is an arithmetic number, because the mean of its divisors is an integer number (1613556).

Almost surely, 2^20346892 is an apocalyptic number.

It is an amenable number.

20346892 is a deficient number, since it is larger than the sum of its proper divisors (18378452).

20346892 is a wasteful number, since it uses less digits than its factorization.

20346892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8145 (or 8143 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20346892 is about 4510.7529304984. The cubic root of 20346892 is about 273.0021244361.

The spelling of 20346892 in words is "twenty million, three hundred forty-six thousand, eight hundred ninety-two".