4453640372 has 12 divisors (see below), whose sum is σ = 7800179940. Its totient is φ = 2225017536.

The previous prime is 4453640371. The next prime is 4453640377. The reversal of 4453640372 is 2730463544.

It can be written as a sum of positive squares in 2 ways, for example, as 3225558436 + 1228081936 = 56794^2 + 35044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4453640371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445097 + ... + 454992.

It is an arithmetic number, because the mean of its divisors is an integer number (650014995).

Almost surely, 2^4453640372 is an apocalyptic number.

It is an amenable number.

4453640372 is a deficient number, since it is larger than the sum of its proper divisors (3346539568).

4453640372 is a wasteful number, since it uses less digits than its factorization.

4453640372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901330 (or 901328 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 38.

The square root of 4453640372 is about 66735.6004842992. The cubic root of 4453640372 is about 1645.2745570805.

The spelling of 4453640372 in words is "four billion, four hundred fifty-three million, six hundred forty thousand, three hundred seventy-two".