1388222300 has 36 divisors (see below), whose sum is σ = 3014130000. Its totient is φ = 554977920.

The previous prime is 1388222287. The next prime is 1388222309. The reversal of 1388222300 is 32228831.

It is a super-2 number, since 2×1388222300² = 3854322308434580000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388222309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275201 + ... + 280199.

Almost surely, 2^1388222300 is an apocalyptic number.

1388222300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1388222300 is an abundant number, since it is smaller than the sum of its proper divisors (1625907700).

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

1388222300 is a wasteful number, since it uses less digits than its factorization.

1388222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790 (or 7783 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1388222300 is about 37258.8553232651. The cubic root of 1388222300 is about 1115.5430602803.

The spelling of 1388222300 in words is "one billion, three hundred eighty-eight million, two hundred twenty-two thousand, three hundred".