1383280427 has 16 divisors (see below), whose sum is σ = 1494030720. Its totient is φ = 1276430400.

The previous prime is 1383280411. The next prime is 1383280471. The reversal of 1383280427 is 7240823831.

It is a cyclic number.

It is not a de Polignac number, because 1383280427 - 2⁴ = 1383280411 is a prime.

It is a super-3 number, since 3×1383280427³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383280477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686852 + ... + 688862.

It is an arithmetic number, because the mean of its divisors is an integer number (93376920).

Almost surely, 2^1383280427 is an apocalyptic number.

1383280427 is a deficient number, since it is larger than the sum of its proper divisors (110750293).

1383280427 is a wasteful number, since it uses less digits than its factorization.

1383280427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 1383280427 is about 37192.4780970561. The cubic root of 1383280427 is about 1114.2177617847.

The spelling of 1383280427 in words is "one billion, three hundred eighty-three million, two hundred eighty thousand, four hundred twenty-seven".