388788222 has 32 divisors (see below), whose sum is σ = 826963200. Its totient is φ = 121506048.

The previous prime is 388788221. The next prime is 388788259. The reversal of 388788222 is 222887883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388788221) 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, 6522 + ... + 28637.

It is an arithmetic number, because the mean of its divisors is an integer number (25842600).

Almost surely, 2^388788222 is an apocalyptic number.

388788222 is an abundant number, since it is smaller than the sum of its proper divisors (438174978).

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

388788222 is a wasteful number, since it uses less digits than its factorization.

388788222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35280.

The product of its digits is 688128, while the sum is 48.

The square root of 388788222 is about 19717.7134069851. The cubic root of 388788222 is about 729.8568694175.

The spelling of 388788222 in words is "three hundred eighty-eight million, seven hundred eighty-eight thousand, two hundred twenty-two".