1326426331 has 16 divisors (see below), whose sum is σ = 1395360000. Its totient is φ = 1259143200.

The previous prime is 1326426329. The next prime is 1326426359. The reversal of 1326426331 is 1336246231.

It is a cyclic number.

It is not a de Polignac number, because 1326426331 - 2¹ = 1326426329 is a prime.

It is a super-2 number, since 2×1326426331² = 3518813623140243122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1326426293 and 1326426302.

It is not an unprimeable number, because it can be changed into a prime (1326426931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026796 + ... + 1028086.

It is an arithmetic number, because the mean of its divisors is an integer number (87210000).

Almost surely, 2^1326426331 is an apocalyptic number.

1326426331 is a deficient number, since it is larger than the sum of its proper divisors (68933669).

1326426331 is a wasteful number, since it uses less digits than its factorization.

1326426331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890.

The product of its digits is 15552, while the sum is 31.

The square root of 1326426331 is about 36420.1363396679. The cubic root of 1326426331 is about 1098.7385901367.

The spelling of 1326426331 in words is "one billion, three hundred twenty-six million, four hundred twenty-six thousand, three hundred thirty-one".