20034340 has 24 divisors (see below), whose sum is σ = 42702912. Its totient is φ = 7893600.

The previous prime is 20034337. The next prime is 20034373. The reversal of 20034340 is 4343002.

It is an unprimeable number.

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, 6136 + ... + 8815.

It is an arithmetic number, because the mean of its divisors is an integer number (1779288).

Almost surely, 2^20034340 is an apocalyptic number.

20034340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20034340 is an abundant number, since it is smaller than the sum of its proper divisors (22668572).

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

20034340 is a wasteful number, since it uses less digits than its factorization.

20034340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15027 (or 15025 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20034340 is about 4475.9736370984. The cubic root of 20034340 is about 271.5970279975.

Adding to 20034340 its reverse (4343002), we get a palindrome (24377342).

The spelling of 20034340 in words is "twenty million, thirty-four thousand, three hundred forty".