20146364 has 24 divisors (see below), whose sum is σ = 40897920. Its totient is φ = 8504496.

The previous prime is 20146363. The next prime is 20146381. The reversal of 20146364 is 46364102.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3494 + ... + 7245.

It is an arithmetic number, because the mean of its divisors is an integer number (1704080).

Almost surely, 2^20146364 is an apocalyptic number.

It is an amenable number.

20146364 is an abundant number, since it is smaller than the sum of its proper divisors (20751556).

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

20146364 is a wasteful number, since it uses less digits than its factorization.

20146364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10817 (or 10815 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20146364 is about 4488.4701179801. The cubic root of 20146364 is about 272.1023079671.

The spelling of 20146364 in words is "twenty million, one hundred forty-six thousand, three hundred sixty-four".