3162442644 has 18 divisors (see below), whose sum is σ = 7993952330. Its totient is φ = 1054147536.

The previous prime is 3162442643. The next prime is 3162442733. The reversal of 3162442644 is 4462442613.

3162442644 is a `hidden beast` number, since 3 + 1 + 6 + 2 + 4 + 4 + 2 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2400020100 + 762422544 = 48990^2 + 27612^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 87845629 = 3162442644 / (3 + 1 + 6 + 2 + 4 + 4 + 2 + 6 + 4 + 4).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3162442599 and 3162442608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3162442643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43922779 + ... + 43922850.

Almost surely, 2^3162442644 is an apocalyptic number.

It is an amenable number.

3162442644 is an abundant number, since it is smaller than the sum of its proper divisors (4831509686).

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

3162442644 is a wasteful number, since it uses less digits than its factorization.

3162442644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87845639 (or 87845634 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 3162442644 is about 56235.5994366558. The cubic root of 3162442644 is about 1467.8247934152.

The spelling of 3162442644 in words is "three billion, one hundred sixty-two million, four hundred forty-two thousand, six hundred forty-four".