1326031420 has 192 divisors, whose sum is σ = 3475777536. Its totient is φ = 415134720.

The previous prime is 1326031393. The next prime is 1326031453. The reversal of 1326031420 is 241306231.

It is a junction number, because it is equal to n+sod(n) for n = 1326031391 and 1326031400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8445982 + ... + 8446138.

It is an arithmetic number, because the mean of its divisors is an integer number (18103008).

Almost surely, 2^1326031420 is an apocalyptic number.

1326031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737888768).

1326031420 is an abundant number, since it is smaller than the sum of its proper divisors (2149746116).

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

1326031420 is a wasteful number, since it uses less digits than its factorization.

1326031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1326031420 is about 36414.7143336317. The cubic root of 1326031420 is about 1098.6295384656.

Adding to 1326031420 its reverse (241306231), we get a palindrome (1567337651).

The spelling of 1326031420 in words is "one billion, three hundred twenty-six million, thirty-one thousand, four hundred twenty".