20073340 has 36 divisors (see below), whose sum is σ = 49038696. Its totient is φ = 6881952.

The previous prime is 20073299. The next prime is 20073343. The reversal of 20073340 is 4337002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20073343) 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 11 ways as a sum of consecutive naturals, for example, 9262 + ... + 11221.

It is an arithmetic number, because the mean of its divisors is an integer number (1362186).

Almost surely, 2^20073340 is an apocalyptic number.

20073340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20073340 is an abundant number, since it is smaller than the sum of its proper divisors (28965356).

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

20073340 is a wasteful number, since it uses less digits than its factorization.

20073340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20506 (or 20497 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20073340 is about 4480.3281129846. The cubic root of 20073340 is about 271.7731492362.

The spelling of 20073340 in words is "twenty million, seventy-three thousand, three hundred forty".