20738061 has 6 divisors (see below), whose sum is σ = 29954990. Its totient is φ = 13825368.

The previous prime is 20738057. The next prime is 20738119. The reversal of 20738061 is 16083702.

It can be written as a sum of positive squares in only one way, i.e., 20385225 + 352836 = 4515^2 + 594^2 .

It is not a de Polignac number, because 20738061 - 2² = 20738057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738021) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1152106 + ... + 1152123.

Almost surely, 2^20738061 is an apocalyptic number.

It is an amenable number.

20738061 is a deficient number, since it is larger than the sum of its proper divisors (9216929).

20738061 is a wasteful number, since it uses less digits than its factorization.

20738061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304235 (or 2304232 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20738061 is about 4553.9061255147. The cubic root of 20738061 is about 274.7405199794.

The spelling of 20738061 in words is "twenty million, seven hundred thirty-eight thousand, sixty-one".