1388106560 has 56 divisors (see below), whose sum is σ = 3479413920. Its totient is φ = 526017024.

The previous prime is 1388106527. The next prime is 1388106581. The reversal of 1388106560 is 656018831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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, 108074 + ... + 120233.

Almost surely, 2^1388106560 is an apocalyptic number.

1388106560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1388106560 is an abundant number, since it is smaller than the sum of its proper divisors (2091307360).

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

1388106560 is a wasteful number, since it uses less digits than its factorization.

1388106560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228343 (or 228333 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1388106560 is about 37257.3021030777. The cubic root of 1388106560 is about 1115.5120574306.

The spelling of 1388106560 in words is "one billion, three hundred eighty-eight million, one hundred six thousand, five hundred sixty".