22342470 has 64 divisors (see below), whose sum is σ = 56514240. Its totient is φ = 5644800.

The previous prime is 22342469. The next prime is 22342511. The reversal of 22342470 is 7424322.

22342470 = T₂₂₀ + T₂₂₁ + ... + T₅₂₄.

It is a self number, because there is not a number n which added to its sum of digits gives 22342470.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52860 + ... + 53280.

It is an arithmetic number, because the mean of its divisors is an integer number (883035).

Almost surely, 2^22342470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22342470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28257120).

22342470 is an abundant number, since it is smaller than the sum of its proper divisors (34171770).

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

22342470 is a wasteful number, since it uses less digits than its factorization.

22342470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 22342470 is about 4726.7822035715. The cubic root of 22342470 is about 281.6504143527.

Adding to 22342470 its reverse (7424322), we get a palindrome (29766792).

The spelling of 22342470 in words is "twenty-two million, three hundred forty-two thousand, four hundred seventy".