1388036964 has 24 divisors (see below), whose sum is σ = 3241959840. Its totient is φ = 462220864.

The previous prime is 1388036953. The next prime is 1388036977. The reversal of 1388036964 is 4696308831.

1388036964 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1388036964² = 3853293226860674592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44529 + ... + 68984.

It is an arithmetic number, because the mean of its divisors is an integer number (135081660).

Almost surely, 2^1388036964 is an apocalyptic number.

It is an amenable number.

1388036964 is an abundant number, since it is smaller than the sum of its proper divisors (1853922876).

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

1388036964 is a wasteful number, since it uses less digits than its factorization.

1388036964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114539 (or 114537 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 1388036964 is about 37256.3680999638. The cubic root of 1388036964 is about 1115.4934141753.

The spelling of 1388036964 in words is "one billion, three hundred eighty-eight million, thirty-six thousand, nine hundred sixty-four".