20071084 has 24 divisors (see below), whose sum is σ = 40573008. Its totient is φ = 8586240.

The previous prime is 20071039. The next prime is 20071097. The reversal of 20071084 is 48017002.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 12669 + ... + 14164.

It is an arithmetic number, because the mean of its divisors is an integer number (1690542).

Almost surely, 2^20071084 is an apocalyptic number.

It is an amenable number.

20071084 is an abundant number, since it is smaller than the sum of its proper divisors (20501924).

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

20071084 is a wasteful number, since it uses less digits than its factorization.

20071084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26865 (or 26863 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 20071084 is about 4480.0763386353. The cubic root of 20071084 is about 271.7629675193.

Adding to 20071084 its reverse (48017002), we get a palindrome (68088086).

The spelling of 20071084 in words is "twenty million, seventy-one thousand, eighty-four".