338689388 has 6 divisors (see below), whose sum is σ = 592706436. Its totient is φ = 169344692.

The previous prime is 338689369. The next prime is 338689399. The reversal of 338689388 is 883986833.

It is a super-2 number, since 2×338689388² = 229421003087629088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42336170 + ... + 42336177.

It is an arithmetic number, because the mean of its divisors is an integer number (98784406).

Almost surely, 2^338689388 is an apocalyptic number.

It is an amenable number.

338689388 is a deficient number, since it is larger than the sum of its proper divisors (254017048).

338689388 is a wasteful number, since it uses less digits than its factorization.

338689388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84672351 (or 84672349 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 56.

The square root of 338689388 is about 18403.5156423983. The cubic root of 338689388 is about 697.0552402413.

The spelling of 338689388 in words is "three hundred thirty-eight million, six hundred eighty-nine thousand, three hundred eighty-eight".