20346422 has 4 divisors (see below), whose sum is σ = 30519636. Its totient is φ = 10173210.

The previous prime is 20346407. The next prime is 20346427. The reversal of 20346422 is 22464302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086604 + ... + 5086607.

It is an arithmetic number, because the mean of its divisors is an integer number (7629909).

Almost surely, 2^20346422 is an apocalyptic number.

20346422 is a deficient number, since it is larger than the sum of its proper divisors (10173214).

20346422 is a wasteful number, since it uses less digits than its factorization.

20346422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173213.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 20346422 is about 4510.7008324650. The cubic root of 20346422 is about 273.0000223627. Note that the first 4 decimals are identical.

The spelling of 20346422 in words is "twenty million, three hundred forty-six thousand, four hundred twenty-two".