20738896 has 10 divisors (see below), whose sum is σ = 40181642. Its totient is φ = 10369440.

The previous prime is 20738849. The next prime is 20738903. The reversal of 20738896 is 69883702.

It can be written as a sum of positive squares in only one way, i.e., 11128896 + 9610000 = 3336^2 + 3100^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648075 + ... + 648106.

Almost surely, 2^20738896 is an apocalyptic number.

It is an amenable number.

20738896 is a deficient number, since it is larger than the sum of its proper divisors (19442746).

20738896 is a wasteful number, since it uses less digits than its factorization.

20738896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296189 (or 1296183 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 20738896 is about 4553.9978041277. The cubic root of 20738896 is about 274.7442073260.

The spelling of 20738896 in words is "twenty million, seven hundred thirty-eight thousand, eight hundred ninety-six".