422259628 has 24 divisors (see below), whose sum is σ = 847252224. Its totient is φ = 180382800.

The previous prime is 422259623. The next prime is 422259647. The reversal of 422259628 is 826952224.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (422259623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15538 + ... + 32953.

It is an arithmetic number, because the mean of its divisors is an integer number (35302176).

Almost surely, 2^422259628 is an apocalyptic number.

It is an amenable number.

422259628 is an abundant number, since it is smaller than the sum of its proper divisors (424992596).

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

422259628 is a wasteful number, since it uses less digits than its factorization.

422259628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48813 (or 48811 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 422259628 is about 20548.9568591693. The cubic root of 422259628 is about 750.2278584707.

The spelling of 422259628 in words is "four hundred twenty-two million, two hundred fifty-nine thousand, six hundred twenty-eight".