20350946 has 32 divisors (see below), whose sum is σ = 38458368. Its totient is φ = 7845840.

The previous prime is 20350933. The next prime is 20350949. The reversal of 20350946 is 64905302.

It is a super-2 number, since 2×20350946² = 828322006189832, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20350949) 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 15 ways as a sum of consecutive naturals, for example, 15221 + ... + 16503.

It is an arithmetic number, because the mean of its divisors is an integer number (1201824).

Almost surely, 2^20350946 is an apocalyptic number.

20350946 is a deficient number, since it is larger than the sum of its proper divisors (18107422).

20350946 is a wasteful number, since it uses less digits than its factorization.

20350946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 20350946 is about 4511.2022787723. The cubic root of 20350946 is about 273.0202545944.

The spelling of 20350946 in words is "twenty million, three hundred fifty thousand, nine hundred forty-six".