1326840 has 32 divisors (see below), whose sum is σ = 3980880. Its totient is φ = 353792.

The previous prime is 1326839. The next prime is 1326859. The reversal of 1326840 is 486231.

It is a happy number.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1326840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409 + ... + 5648.

2^1326840 is an apocalyptic number.

1326840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326840 is an abundant number, since it is smaller than the sum of its proper divisors (2654040).

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

1326840 is a wasteful number, since it uses less digits than its factorization.

1326840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11071 (or 11067 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1326840 is about 1151.8854109676. The cubic root of 1326840 is about 109.8852798478.

The spelling of 1326840 in words is "one million, three hundred twenty-six thousand, eight hundred forty".