1384918228 has 12 divisors (see below), whose sum is σ = 2528981280. Its totient is φ = 662352152.

The previous prime is 1384918219. The next prime is 1384918237. The reversal of 1384918228 is 8228194831.

It is an interprime number because it is at equal distance from previous prime (1384918219) and next prime (1384918237).

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7526638 + ... + 7526821.

It is an arithmetic number, because the mean of its divisors is an integer number (210748440).

Almost surely, 2^1384918228 is an apocalyptic number.

It is an amenable number.

1384918228 is a deficient number, since it is larger than the sum of its proper divisors (1144063052).

1384918228 is a wasteful number, since it uses less digits than its factorization.

1384918228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15053486 (or 15053484 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The square root of 1384918228 is about 37214.4894899823. The cubic root of 1384918228 is about 1114.6573321445.

The spelling of 1384918228 in words is "one billion, three hundred eighty-four million, nine hundred eighteen thousand, two hundred twenty-eight".