1338001388 has 24 divisors (see below), whose sum is σ = 2498775552. Its totient is φ = 624685824.

The previous prime is 1338001387. The next prime is 1338001411. The reversal of 1338001388 is 8831008331.

It is not an unprimeable number, because it can be changed into a prime (1338001387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68831 + ... + 86102.

It is an arithmetic number, because the mean of its divisors is an integer number (104115648).

Almost surely, 2^1338001388 is an apocalyptic number.

It is an amenable number.

1338001388 is a deficient number, since it is larger than the sum of its proper divisors (1160774164).

1338001388 is a wasteful number, since it uses less digits than its factorization.

1338001388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155081 (or 155079 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1338001388 is about 36578.7012891382. The cubic root of 1338001388 is about 1101.9253849610.

The spelling of 1338001388 in words is "one billion, three hundred thirty-eight million, one thousand, three hundred eighty-eight".