20750084 has 12 divisors (see below), whose sum is σ = 36531264. Its totient is φ = 10312584.

The previous prime is 20750069. The next prime is 20750087. The reversal of 20750084 is 48005702.

It is not an unprimeable number, because it can be changed into a prime (20750087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14864 + ... + 16199.

It is an arithmetic number, because the mean of its divisors is an integer number (3044272).

Almost surely, 2^20750084 is an apocalyptic number.

It is an amenable number.

20750084 is a deficient number, since it is larger than the sum of its proper divisors (15781180).

20750084 is a wasteful number, since it uses less digits than its factorization.

20750084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31234 (or 31232 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20750084 is about 4555.2260097607. The cubic root of 20750084 is about 274.7936038096.

Adding to 20750084 its reverse (48005702), we get a palindrome (68755786).

The spelling of 20750084 in words is "twenty million, seven hundred fifty thousand, eighty-four".