1296438 has 32 divisors (see below), whose sum is σ = 3048192. Its totient is φ = 362400.

The previous prime is 1296419. The next prime is 1296467. The reversal of 1296438 is 8346921.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1296399 and 1296408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (95256).

2^1296438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524096).

1296438 is an abundant number, since it is smaller than the sum of its proper divisors (1751754).

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

1296438 is a wasteful number, since it uses less digits than its factorization.

1296438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its digits is 10368, while the sum is 33.

The square root of 1296438 is about 1138.6123133007. The cubic root of 1296438 is about 109.0395165757.

The spelling of 1296438 in words is "one million, two hundred ninety-six thousand, four hundred thirty-eight".