326225781040 has 40 divisors (see below), whose sum is σ = 761174192448. Its totient is φ = 130025925120.

The previous prime is 326225781023. The next prime is 326225781043. The reversal of 326225781040 is 40187522623.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 326225780984 and 326225781002.

It is not an unprimeable number, because it can be changed into a prime (326225781043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7233432 + ... + 7278391.

Almost surely, 2^326225781040 is an apocalyptic number.

It is an amenable number.

326225781040 is an abundant number, since it is smaller than the sum of its proper divisors (434948411408).

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

326225781040 is a wasteful number, since it uses less digits than its factorization.

326225781040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14512117 (or 14512111 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 326225781040 in words is "three hundred twenty-six billion, two hundred twenty-five million, seven hundred eighty-one thousand, forty".