3545220432 has 80 divisors (see below), whose sum is σ = 9987971840. Its totient is φ = 1077014016.

The previous prime is 3545220421. The next prime is 3545220457. The reversal of 3545220432 is 2340225453.

3545220432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3545220432² = 25137175822940533248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3545220432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13338 + ... + 85254.

It is an arithmetic number, because the mean of its divisors is an integer number (124849648).

Almost surely, 2^3545220432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3545220432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4993985920).

3545220432 is an abundant number, since it is smaller than the sum of its proper divisors (6442751408).

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

3545220432 is a wasteful number, since it uses less digits than its factorization.

3545220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72020 (or 72014 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 3545220432 is about 59541.7536859639. The cubic root of 3545220432 is about 1524.8053761481.

Adding to 3545220432 its reverse (2340225453), we get a palindrome (5885445885).

The spelling of 3545220432 in words is "three billion, five hundred forty-five million, two hundred twenty thousand, four hundred thirty-two".