40443604 has 12 divisors (see below), whose sum is σ = 71403444. Its totient is φ = 20042624.

The previous prime is 40443593. The next prime is 40443617. The reversal of 40443604 is 40634404.

It is a happy number.

40443604 is digitally balanced in base 2, 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 248004 + 40195600 = 498^2 + 6340^2 .

It is a super-4 number, since 4×40443604⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44287 + ... + 45190.

It is an arithmetic number, because the mean of its divisors is an integer number (5950287).

Almost surely, 2^40443604 is an apocalyptic number.

It is an amenable number.

40443604 is a deficient number, since it is larger than the sum of its proper divisors (30959840).

40443604 is a wasteful number, since it uses less digits than its factorization.

40443604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89594 (or 89592 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 40443604 is about 6359.5285988822. The cubic root of 40443604 is about 343.2547979689.

The spelling of 40443604 in words is "forty million, four hundred forty-three thousand, six hundred four".