1392413 has 4 divisors (see below), whose sum is σ = 1519008. Its totient is φ = 1265820.

The previous prime is 1392407. The next prime is 1392431. The reversal of 1392413 is 3142931.

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: 3142931 = 11 ⋅285721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1392413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392463) by changing a digit.

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, 63281 + ... + 63302.

It is an arithmetic number, because the mean of its divisors is an integer number (379752).

2^1392413 is an apocalyptic number.

It is an amenable number.

1392413 is a deficient number, since it is larger than the sum of its proper divisors (126595).

1392413 is a wasteful number, since it uses less digits than its factorization.

1392413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126594.

The product of its digits is 648, while the sum is 23.

The square root of 1392413 is about 1180.0055084617. The cubic root of 1392413 is about 111.6664448895. Note that the first 3 decimals are identical.

It can be divided in two parts, 139 and 2413, that added together give a palindrome (2552).

The spelling of 1392413 in words is "one million, three hundred ninety-two thousand, four hundred thirteen".