8022420 has 72 divisors (see below), whose sum is σ = 27815424. Its totient is φ = 1833408.

The previous prime is 8022409. The next prime is 8022437. The reversal of 8022420 is 242208.

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

It is a junction number, because it is equal to n+sod(n) for n = 8022393 and 8022402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1924 + ... + 4443.

Almost surely, 2^8022420 is an apocalyptic number.

It is an amenable number.

8022420 is an abundant number, since it is smaller than the sum of its proper divisors (19793004).

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

8022420 is a wasteful number, since it uses less digits than its factorization.

8022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6384 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 8022420 is about 2832.3876853284. The cubic root of 8022420 is about 200.1866590711.

Adding to 8022420 its reverse (242208), we get a palindrome (8264628).

It can be divided in two parts, 80 and 22420, that added together give a square (22500 = 150²).

The spelling of 8022420 in words is "eight million, twenty-two thousand, four hundred twenty".