338220388 has 48 divisors (see below), whose sum is σ = 677295360. Its totient is φ = 146361600.

The previous prime is 338220383. The next prime is 338220397. The reversal of 338220388 is 883022833.

It is a super-2 number, since 2×338220388² = 228786061717741088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338220383) 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, 91333 + ... + 94963.

It is an arithmetic number, because the mean of its divisors is an integer number (14110320).

Almost surely, 2^338220388 is an apocalyptic number.

It is an amenable number.

338220388 is an abundant number, since it is smaller than the sum of its proper divisors (339074972).

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

338220388 is a wasteful number, since it uses less digits than its factorization.

338220388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 338220388 is about 18390.7690975663. The cubic root of 338220388 is about 696.7333426209.

The spelling of 338220388 in words is "three hundred thirty-eight million, two hundred twenty thousand, three hundred eighty-eight".