1388330396 has 6 divisors (see below), whose sum is σ = 2429578200. Its totient is φ = 694165196.

The previous prime is 1388330353. The next prime is 1388330401. The reversal of 1388330396 is 6930338831.

It is a super-2 number, since 2×1388330396² = 3854922576915033632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173541296 + ... + 173541303.

It is an arithmetic number, because the mean of its divisors is an integer number (404929700).

Almost surely, 2^1388330396 is an apocalyptic number.

It is an amenable number.

1388330396 is a deficient number, since it is larger than the sum of its proper divisors (1041247804).

1388330396 is a wasteful number, since it uses less digits than its factorization.

1388330396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347082603 (or 347082601 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 1388330396 is about 37260.3059031995. The cubic root of 1388330396 is about 1115.5720140036.

The spelling of 1388330396 in words is "one billion, three hundred eighty-eight million, three hundred thirty thousand, three hundred ninety-six".