4361644 has 12 divisors (see below), whose sum is σ = 8723344. Its totient is φ = 1869264.

The previous prime is 4361611. The next prime is 4361653. The reversal of 4361644 is 4461634.

It is a happy number.

4361644 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 155773 = 4361644 / (4 + 3 + 6 + 1 + 6 + 4 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77859 + ... + 77914.

Almost surely, 2^4361644 is an apocalyptic number.

It is an amenable number.

4361644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4361644 is a wasteful number, since it uses less digits than its factorization.

4361644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155784 (or 155782 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 4361644 is about 2088.4549312829. The cubic root of 4361644 is about 163.3867140067.

It can be divided in two parts, 43616 and 44, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 4361644 in words is "four million, three hundred sixty-one thousand, six hundred forty-four".