428242022 has 8 divisors (see below), whose sum is σ = 691775616. Its totient is φ = 197650152.

The previous prime is 428241997. The next prime is 428242027. The reversal of 428242022 is 220242824.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 16470847 = 428242022 / (4 + 2 + 8 + 2 + 4 + 2 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 428241982 and 428242000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428242027) 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, 8235398 + ... + 8235449.

It is an arithmetic number, because the mean of its divisors is an integer number (86471952).

Almost surely, 2^428242022 is an apocalyptic number.

428242022 is a deficient number, since it is larger than the sum of its proper divisors (263533594).

428242022 is a wasteful number, since it uses less digits than its factorization.

428242022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16470862.

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 428242022 is about 20694.0093263727. The cubic root of 428242022 is about 753.7542264302.

Adding to 428242022 its reverse (220242824), we get a palindrome (648484846).

The spelling of 428242022 in words is "four hundred twenty-eight million, two hundred forty-two thousand, twenty-two".