38913222 has 16 divisors (see below), whose sum is σ = 78765120. Its totient is φ = 12814632.

The previous prime is 38913209. The next prime is 38913229. The reversal of 38913222 is 22231983.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 38913222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38913229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38572 + ... + 39567.

It is an arithmetic number, because the mean of its divisors is an integer number (4922820).

Almost surely, 2^38913222 is an apocalyptic number.

38913222 is an abundant number, since it is smaller than the sum of its proper divisors (39851898).

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

38913222 is a wasteful number, since it uses less digits than its factorization.

38913222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78227.

The product of its digits is 5184, while the sum is 30.

The square root of 38913222 is about 6238.0463287795. The cubic root of 38913222 is about 338.8694339733.

The spelling of 38913222 in words is "thirty-eight million, nine hundred thirteen thousand, two hundred twenty-two".