40446404 has 6 divisors (see below), whose sum is σ = 70781214. Its totient is φ = 20223200.

The previous prime is 40446361. The next prime is 40446409. The reversal of 40446404 is 40464404.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 123904 = 6350^2 + 352^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (40446409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055797 + ... + 5055804.

It is an arithmetic number, because the mean of its divisors is an integer number (11796869).

Almost surely, 2^40446404 is an apocalyptic number.

It is an amenable number.

40446404 is a deficient number, since it is larger than the sum of its proper divisors (30334810).

40446404 is a wasteful number, since it uses less digits than its factorization.

40446404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111605 (or 10111603 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 40446404 is about 6359.7487371751. The cubic root of 40446404 is about 343.2627192152.

The spelling of 40446404 in words is "forty million, four hundred forty-six thousand, four hundred four".