20083740 has 48 divisors (see below), whose sum is σ = 56881440. Its totient is φ = 5294080.

The previous prime is 20083733. The next prime is 20083751. The reversal of 20083740 is 4738002.

It is a super-2 number, since 2×20083740² = 806713224775200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20083740.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3460 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (1185030).

Almost surely, 2^20083740 is an apocalyptic number.

20083740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20083740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28440720).

20083740 is an abundant number, since it is smaller than the sum of its proper divisors (36797700).

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

20083740 is a wasteful number, since it uses less digits than its factorization.

20083740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20083740 is about 4481.4885919748. The cubic root of 20083740 is about 271.8200763672.

The spelling of 20083740 in words is "twenty million, eighty-three thousand, seven hundred forty".