3325721406 has 16 divisors (see below), whose sum is σ = 7601649024. Its totient is φ = 950206104.

The previous prime is 3325721401. The next prime is 3325721417. The reversal of 3325721406 is 6041275233.

It is a super-2 number, since 2×3325721406² = 22120845740653233672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3325721401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39591880 + ... + 39591963.

It is an arithmetic number, because the mean of its divisors is an integer number (475103064).

Almost surely, 2^3325721406 is an apocalyptic number.

3325721406 is an abundant number, since it is smaller than the sum of its proper divisors (4275927618).

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

3325721406 is a wasteful number, since it uses less digits than its factorization.

3325721406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79183855.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 3325721406 is about 57669.0680174390. The cubic root of 3325721406 is about 1492.6636446465.

Adding to 3325721406 its reverse (6041275233), we get a palindrome (9366996639).

The spelling of 3325721406 in words is "three billion, three hundred twenty-five million, seven hundred twenty-one thousand, four hundred six".