422021310 has 16 divisors (see below), whose sum is σ = 1012851216. Its totient is φ = 112539008.

The previous prime is 422021309. The next prime is 422021339. The reversal of 422021310 is 13120224.

It is a super-2 number, since 2×422021310² = 356203972188232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 422021310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7033659 + ... + 7033718.

It is an arithmetic number, because the mean of its divisors is an integer number (63303201).

Almost surely, 2^422021310 is an apocalyptic number.

422021310 is an abundant number, since it is smaller than the sum of its proper divisors (590829906).

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

422021310 is a wasteful number, since it uses less digits than its factorization.

422021310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14067387.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 422021310 is about 20543.1572549109. The cubic root of 422021310 is about 750.0866922011.

Adding to 422021310 its reverse (13120224), we get a palindrome (435141534).

The spelling of 422021310 in words is "four hundred twenty-two million, twenty-one thousand, three hundred ten".