20822342 has 16 divisors (see below), whose sum is σ = 32864832. Its totient is φ = 9881280.

The previous prime is 20822341. The next prime is 20822353. The reversal of 20822342 is 24322802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20822341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 6465.

It is an arithmetic number, because the mean of its divisors is an integer number (2054052).

Almost surely, 2^20822342 is an apocalyptic number.

20822342 is a deficient number, since it is larger than the sum of its proper divisors (12042490).

20822342 is a wasteful number, since it uses less digits than its factorization.

20822342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20822342 is about 4563.1504467856. The cubic root of 20822342 is about 275.1122054514.

The spelling of 20822342 in words is "twenty million, eight hundred twenty-two thousand, three hundred forty-two".