20223270 has 40 divisors (see below), whose sum is σ = 54380304. Its totient is φ = 5392656.

The previous prime is 20223257. The next prime is 20223283. The reversal of 20223270 is 7232202.

It is an interprime number because it is at equal distance from previous prime (20223257) and next prime (20223283).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11674 + ... + 13293.

Almost surely, 2^20223270 is an apocalyptic number.

20223270 is an abundant number, since it is smaller than the sum of its proper divisors (34157034).

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

20223270 is a wasteful number, since it uses less digits than its factorization.

20223270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24986 (or 24977 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20223270 is about 4497.0290192526. The cubic root of 20223270 is about 272.4481061578.

Adding to 20223270 its reverse (7232202), we get a palindrome (27455472).

The spelling of 20223270 in words is "twenty million, two hundred twenty-three thousand, two hundred seventy".