1326428 has 24 divisors (see below), whose sum is σ = 2526720. Its totient is φ = 606960.

The previous prime is 1326427. The next prime is 1326443. The reversal of 1326428 is 8246231.

It is a super-2 number, since 2×1326428² = 3518822478368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1326397 and 1326406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326427) 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 7 ways as a sum of consecutive naturals, for example, 2075 + ... + 2637.

It is an arithmetic number, because the mean of its divisors is an integer number (105280).

2^1326428 is an apocalyptic number.

It is an amenable number.

1326428 is a deficient number, since it is larger than the sum of its proper divisors (1200292).

1326428 is a wasteful number, since it uses less digits than its factorization.

1326428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1326428 is about 1151.7065598493. The cubic root of 1326428 is about 109.8739050972.

The spelling of 1326428 in words is "one million, three hundred twenty-six thousand, four hundred twenty-eight".