1392847426 has 8 divisors (see below), whose sum is σ = 2089733184. Its totient is φ = 696269700.

The previous prime is 1392847411. The next prime is 1392847427. The reversal of 1392847426 is 6247482931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1392847426² = 3880047904229650952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1392847427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65350 + ... + 84001.

It is an arithmetic number, because the mean of its divisors is an integer number (261216648).

Almost surely, 2^1392847426 is an apocalyptic number.

1392847426 is a deficient number, since it is larger than the sum of its proper divisors (696885758).

1392847426 is a wasteful number, since it uses less digits than its factorization.

1392847426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154016.

The product of its digits is 580608, while the sum is 46.

The square root of 1392847426 is about 37320.8711849014. The cubic root of 1392847426 is about 1116.7805680899.

The spelling of 1392847426 in words is "one billion, three hundred ninety-two million, eight hundred forty-seven thousand, four hundred twenty-six".