388281222 has 32 divisors (see below), whose sum is σ = 986112000. Its totient is φ = 110937384.

The previous prime is 388281211. The next prime is 388281227. The reversal of 388281222 is 222182883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388281227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513222 + ... + 513977.

It is an arithmetic number, because the mean of its divisors is an integer number (30816000).

Almost surely, 2^388281222 is an apocalyptic number.

388281222 is an abundant number, since it is smaller than the sum of its proper divisors (597830778).

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

388281222 is a wasteful number, since it uses less digits than its factorization.

388281222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027217 (or 1027211 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 388281222 is about 19704.8527525582. The cubic root of 388281222 is about 729.5394743441.

The spelling of 388281222 in words is "three hundred eighty-eight million, two hundred eighty-one thousand, two hundred twenty-two".