1382005428 has 12 divisors (see below), whose sum is σ = 3224679360. Its totient is φ = 460668472.

The previous prime is 1382005399. The next prime is 1382005549. The reversal of 1382005428 is 8245002831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57583548 + ... + 57583571.

It is an arithmetic number, because the mean of its divisors is an integer number (268723280).

Almost surely, 2^1382005428 is an apocalyptic number.

It is an amenable number.

1382005428 is an abundant number, since it is smaller than the sum of its proper divisors (1842673932).

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

1382005428 is a wasteful number, since it uses less digits than its factorization.

1382005428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115167126 (or 115167124 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1382005428 is about 37175.3335963512. Note that the first 3 decimals coincide. The cubic root of 1382005428 is about 1113.8753238134.

The spelling of 1382005428 in words is "one billion, three hundred eighty-two million, five thousand, four hundred twenty-eight".