1388484404 has 6 divisors (see below), whose sum is σ = 2429847714. Its totient is φ = 694242200.

The previous prime is 1388484397. The next prime is 1388484431. The reversal of 1388484404 is 4044848831.

It can be written as a sum of positive squares in only one way, i.e., 1350415504 + 38068900 = 36748^2 + 6170^2 .

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, 173560547 + ... + 173560554.

It is an arithmetic number, because the mean of its divisors is an integer number (404974619).

Almost surely, 2^1388484404 is an apocalyptic number.

It is an amenable number.

1388484404 is a deficient number, since it is larger than the sum of its proper divisors (1041363310).

1388484404 is a wasteful number, since it uses less digits than its factorization.

1388484404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347121105 (or 347121103 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The square root of 1388484404 is about 37262.3724955886. The cubic root of 1388484404 is about 1115.6132627492.

The spelling of 1388484404 in words is "one billion, three hundred eighty-eight million, four hundred eighty-four thousand, four hundred four".