32224290 has 32 divisors (see below), whose sum is σ = 88387200. Its totient is φ = 7365504.

The previous prime is 32224279. The next prime is 32224301. The reversal of 32224290 is 9242223.

It is an interprime number because it is at equal distance from previous prime (32224279) and next prime (32224301).

It is a self number, because there is not a number n which added to its sum of digits gives 32224290.

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 15 ways as a sum of consecutive naturals, for example, 76515 + ... + 76934.

It is an arithmetic number, because the mean of its divisors is an integer number (2762100).

Almost surely, 2^32224290 is an apocalyptic number.

32224290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

32224290 is an abundant number, since it is smaller than the sum of its proper divisors (56162910).

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

32224290 is a wasteful number, since it uses less digits than its factorization.

32224290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153466.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 32224290 is about 5676.6442551916. The cubic root of 32224290 is about 318.2202303409.

The spelling of 32224290 in words is "thirty-two million, two hundred twenty-four thousand, two hundred ninety".