20722383 has 12 divisors (see below), whose sum is σ = 32653608. Its totient is φ = 12558960.

The previous prime is 20722381. The next prime is 20722397. The reversal of 20722383 is 38322702.

It is not a de Polignac number, because 20722383 - 2¹ = 20722381 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20722381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104560 + ... + 104757.

It is an arithmetic number, because the mean of its divisors is an integer number (2721134).

Almost surely, 2^20722383 is an apocalyptic number.

20722383 is a deficient number, since it is larger than the sum of its proper divisors (11931225).

20722383 is a wasteful number, since it uses less digits than its factorization.

20722383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209334 (or 209331 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20722383 is about 4552.1844206930. The cubic root of 20722383 is about 274.6712677995.

The spelling of 20722383 in words is "twenty million, seven hundred twenty-two thousand, three hundred eighty-three".