1384026869 has 4 divisors (see below), whose sum is σ = 1384195296. Its totient is φ = 1383858444.

The previous prime is 1384026851. The next prime is 1384026877. The reversal of 1384026869 is 9686204831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9686204831 = 1163 ⋅8328637.

It is a cyclic number.

It is not a de Polignac number, because 1384026869 - 2⁸ = 1384026613 is a prime.

It is a super-2 number, since 2×1384026869² = 3831060748227886322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384026269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71219 + ... + 88544.

It is an arithmetic number, because the mean of its divisors is an integer number (346048824).

Almost surely, 2^1384026869 is an apocalyptic number.

It is an amenable number.

1384026869 is a deficient number, since it is larger than the sum of its proper divisors (168427).

1384026869 is an equidigital number, since it uses as much as digits as its factorization.

1384026869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168426.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1384026869 is about 37202.5115953211. The cubic root of 1384026869 is about 1114.4181427929.

The spelling of 1384026869 in words is "one billion, three hundred eighty-four million, twenty-six thousand, eight hundred sixty-nine".