1326734390 has 8 divisors (see below), whose sum is σ = 2388121920. Its totient is φ = 530693752.

The previous prime is 1326734363. The next prime is 1326734399. The reversal of 1326734390 is 934376231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326734399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66336710 + ... + 66336729.

It is an arithmetic number, because the mean of its divisors is an integer number (298515240).

Almost surely, 2^1326734390 is an apocalyptic number.

1326734390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1326734390 is a deficient number, since it is larger than the sum of its proper divisors (1061387530).

1326734390 is a wasteful number, since it uses less digits than its factorization.

1326734390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132673446.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 1326734390 is about 36424.3653342100. The cubic root of 1326734390 is about 1098.8236432611.

The spelling of 1326734390 in words is "one billion, three hundred twenty-six million, seven hundred thirty-four thousand, three hundred ninety".