322240638 has 8 divisors (see below), whose sum is σ = 644481288. Its totient is φ = 107413544.

The previous prime is 322240621. The next prime is 322240643. The reversal of 322240638 is 836042223.

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

322240638 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 26853381 + ... + 26853392.

It is an arithmetic number, because the mean of its divisors is an integer number (80560161).

Almost surely, 2^322240638 is an apocalyptic number.

322240638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

322240638 is a wasteful number, since it uses less digits than its factorization.

322240638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53706778.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 322240638 is about 17951.0623083984. The cubic root of 322240638 is about 685.5830991474.

The spelling of 322240638 in words is "three hundred twenty-two million, two hundred forty thousand, six hundred thirty-eight".