438686841429222 has 24 divisors (see below), whose sum is σ = 932019794597256. Its totient is φ = 137627244369408.

The previous prime is 438686841429167. The next prime is 438686841429253. The reversal of 438686841429222 is 222924148686834.

It is a super-2 number, since 2×438686841429222² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126495627283 + ... + 126495630750.

It is an arithmetic number, because the mean of its divisors is an integer number (38834158108219).

Almost surely, 2^{438686841429222} is an apocalyptic number.

438686841429222 is an abundant number, since it is smaller than the sum of its proper divisors (493332953168034).

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

438686841429222 is a wasteful number, since it uses less digits than its factorization.

438686841429222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252991258072 (or 252991258055 counting only the distinct ones).

The product of its digits is 509607936, while the sum is 69.

The spelling of 438686841429222 in words is "four hundred thirty-eight trillion, six hundred eighty-six billion, eight hundred forty-one million, four hundred twenty-nine thousand, two hundred twenty-two".