611445432 has 128 divisors (see below), whose sum is σ = 1732953600. Its totient is φ = 178371072.

The previous prime is 611445427. The next prime is 611445433. The reversal of 611445432 is 234544116.

611445432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 611445432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611445433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997158 + ... + 997770.

It is an arithmetic number, because the mean of its divisors is an integer number (13538700).

Almost surely, 2^611445432 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 611445432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866476800).

611445432 is an abundant number, since it is smaller than the sum of its proper divisors (1121508168).

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

611445432 is a wasteful number, since it uses less digits than its factorization.

611445432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 793 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 611445432 is about 24727.4226720053. The cubic root of 611445432 is about 848.7619494053.

Adding to 611445432 its reverse (234544116), we get a palindrome (845989548).

The spelling of 611445432 in words is "six hundred eleven million, four hundred forty-five thousand, four hundred thirty-two".