20063340 has 72 divisors (see below), whose sum is σ = 66397968. Its totient is φ = 4863360.

The previous prime is 20063339. The next prime is 20063369. The reversal of 20063340 is 4336002.

It is a super-2 number, since 2×20063340² = 805075223911200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3087 + ... + 7046.

It is an arithmetic number, because the mean of its divisors is an integer number (922194).

Almost surely, 2^20063340 is an apocalyptic number.

20063340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20063340 is an abundant number, since it is smaller than the sum of its proper divisors (46334628).

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

20063340 is a wasteful number, since it uses less digits than its factorization.

20063340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10159 (or 10154 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20063340 is about 4479.2119842669. The cubic root of 20063340 is about 271.7280117069.

Adding to 20063340 its reverse (4336002), we get a palindrome (24399342).

The spelling of 20063340 in words is "twenty million, sixty-three thousand, three hundred forty".