20738079 has 16 divisors (see below), whose sum is σ = 32531040. Its totient is φ = 13011840.

The previous prime is 20738057. The next prime is 20738119. The reversal of 20738079 is 97083702.

20738079 is a `hidden beast` number, since 207 + 380 + 79 = 666.

It is not a de Polignac number, because 20738079 - 2¹⁷ = 20607007 is a prime.

It is a super-2 number, since 2×20738079² = 860135841220482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738279) 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 15 ways as a sum of consecutive naturals, for example, 22132 + ... + 23049.

It is an arithmetic number, because the mean of its divisors is an integer number (2033190).

Almost surely, 2^20738079 is an apocalyptic number.

20738079 is a deficient number, since it is larger than the sum of its proper divisors (11792961).

20738079 is a wasteful number, since it uses less digits than its factorization.

20738079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45207 (or 45201 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 20738079 is about 4553.9081018396. The cubic root of 20738079 is about 274.7405994681.

The spelling of 20738079 in words is "twenty million, seven hundred thirty-eight thousand, seventy-nine".