1326425100 has 432 divisors, whose sum is σ = 5253163776. Its totient is φ = 254016000.

The previous prime is 1326425077. The next prime is 1326425101. The reversal of 1326425100 is 15246231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326425101) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2101785 + ... + 2102415.

Almost surely, 2^1326425100 is an apocalyptic number.

1326425100 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 1326425100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626581888).

1326425100 is an abundant number, since it is smaller than the sum of its proper divisors (3926738676).

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

1326425100 is a wasteful number, since it uses less digits than its factorization.

1326425100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1326425100 is about 36420.1194396724. The cubic root of 1326425100 is about 1098.7382502390.

It can be divided in two parts, 1326 and 425100, that added together give a triangular number (426426 = T₉₂₃).

The spelling of 1326425100 in words is "one billion, three hundred twenty-six million, four hundred twenty-five thousand, one hundred".