75722436 has 36 divisors (see below), whose sum is σ = 192483564. Its totient is φ = 25099200.

The previous prime is 75722431. The next prime is 75722443. The reversal of 75722436 is 63422757.

It is a happy number.

75722436 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2722500 + 72999936 = 1650^2 + 8544^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

75722436 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 75722436.

It is not an unprimeable number, because it can be changed into a prime (75722431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 706 + ... + 12326.

Almost surely, 2^75722436 is an apocalyptic number.

It is an amenable number.

75722436 is an abundant number, since it is smaller than the sum of its proper divisors (116761128).

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

75722436 is a wasteful number, since it uses less digits than its factorization.

75722436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11812 (or 11807 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 75722436 is about 8701.8639382606. The cubic root of 75722436 is about 423.0660661694.

The spelling of 75722436 in words is "seventy-five million, seven hundred twenty-two thousand, four hundred thirty-six".