20742322 has 8 divisors (see below), whose sum is σ = 31775616. Its totient is φ = 10150452.

The previous prime is 20742307. The next prime is 20742353. The reversal of 20742322 is 22324702.

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

It is a junction number, because it is equal to n+sod(n) for n = 20742293 and 20742302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110238 + ... + 110425.

It is an arithmetic number, because the mean of its divisors is an integer number (3971952).

Almost surely, 2^20742322 is an apocalyptic number.

20742322 is a deficient number, since it is larger than the sum of its proper divisors (11033294).

20742322 is a wasteful number, since it uses less digits than its factorization.

20742322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220712.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20742322 is about 4554.3739416082. The cubic root of 20742322 is about 274.7593354509.

The spelling of 20742322 in words is "twenty million, seven hundred forty-two thousand, three hundred twenty-two".