40446490 has 16 divisors (see below), whose sum is σ = 83204352. Its totient is φ = 13867344.

The previous prime is 40446467. The next prime is 40446491. The reversal of 40446490 is 9464404.

It is not an unprimeable number, because it can be changed into a prime (40446491) 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 in 7 ways as a sum of consecutive naturals, for example, 288834 + ... + 288973.

It is an arithmetic number, because the mean of its divisors is an integer number (5200272).

Almost surely, 2^40446490 is an apocalyptic number.

40446490 is an abundant number, since it is smaller than the sum of its proper divisors (42757862).

40446490 is a wasteful number, since it uses less digits than its factorization.

40446490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577821.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40446490 is about 6359.7554984449. The cubic root of 40446490 is about 343.2629625049.

The spelling of 40446490 in words is "forty million, four hundred forty-six thousand, four hundred ninety".