20035740 has 24 divisors (see below), whose sum is σ = 56100240. Its totient is φ = 5342848.

The previous prime is 20035711. The next prime is 20035753. The reversal of 20035740 is 4753002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166905 + ... + 167024.

It is an arithmetic number, because the mean of its divisors is an integer number (2337510).

Almost surely, 2^20035740 is an apocalyptic number.

20035740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20035740 is an abundant number, since it is smaller than the sum of its proper divisors (36064500).

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

20035740 is a wasteful number, since it uses less digits than its factorization.

20035740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333941 (or 333939 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20035740 is about 4476.1300249211. The cubic root of 20035740 is about 271.6033542517.

Adding to 20035740 its reverse (4753002), we get a palindrome (24788742).

The spelling of 20035740 in words is "twenty million, thirty-five thousand, seven hundred forty".