20742327 has 12 divisors (see below), whose sum is σ = 30115800. Its totient is φ = 13756848.

The previous prime is 20742307. The next prime is 20742353. The reversal of 20742327 is 72324702.

It is not a de Polignac number, because 20742327 - 2⁷ = 20742199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20742327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20742307) 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, 4077 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (2509650).

Almost surely, 2^20742327 is an apocalyptic number.

20742327 is a deficient number, since it is larger than the sum of its proper divisors (9373473).

20742327 is a wasteful number, since it uses less digits than its factorization.

20742327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11902 (or 11899 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 20742327 is about 4554.3744905311. The cubic root of 20742327 is about 274.7593575280.

The spelling of 20742327 in words is "twenty million, seven hundred forty-two thousand, three hundred twenty-seven".