1388416468 has 48 divisors (see below), whose sum is σ = 2554101760. Its totient is φ = 659599200.

The previous prime is 1388416369. The next prime is 1388416501. The reversal of 1388416468 is 8646148831.

It is a super-2 number, since 2×1388416468² = 3855400577227190048, 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 in 15 ways as a sum of consecutive naturals, for example, 2654455 + ... + 2654977.

Almost surely, 2^1388416468 is an apocalyptic number.

It is an amenable number.

1388416468 is a deficient number, since it is larger than the sum of its proper divisors (1165685292).

1388416468 is a wasteful number, since it uses less digits than its factorization.

1388416468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 906 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 1388416468 is about 37261.4608946026. The cubic root of 1388416468 is about 1115.5950674810.

The spelling of 1388416468 in words is "one billion, three hundred eighty-eight million, four hundred sixteen thousand, four hundred sixty-eight".