20763338 has 8 divisors (see below), whose sum is σ = 31214532. Its totient is φ = 10358496.

The previous prime is 20763283. The next prime is 20763349. The reversal of 20763338 is 83336702.

It can be written as a sum of positive squares in 2 ways, for example, as 20457529 + 305809 = 4523^2 + 553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20763338² = 862232409804488, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10445 + ... + 12272.

Almost surely, 2^20763338 is an apocalyptic number.

20763338 is a deficient number, since it is larger than the sum of its proper divisors (10451194).

20763338 is a wasteful number, since it uses less digits than its factorization.

20763338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23176.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 20763338 is about 4556.6805900787. The cubic root of 20763338 is about 274.8520989823.

The spelling of 20763338 in words is "twenty million, seven hundred sixty-three thousand, three hundred thirty-eight".