20223402 has 8 divisors (see below), whose sum is σ = 40446816. Its totient is φ = 6741132.

The previous prime is 20223389. The next prime is 20223403. The reversal of 20223402 is 20432202.

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

20223402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20223403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685278 + ... + 1685289.

It is an arithmetic number, because the mean of its divisors is an integer number (5055852).

Almost surely, 2^20223402 is an apocalyptic number.

20223402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20223402 is a wasteful number, since it uses less digits than its factorization.

20223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370572.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20223402 is about 4497.0436955849. The cubic root of 20223402 is about 272.4486989250.

Adding to 20223402 its reverse (20432202), we get a palindrome (40655604).

The spelling of 20223402 in words is "twenty million, two hundred twenty-three thousand, four hundred two".