40413444 has 12 divisors (see below), whose sum is σ = 94298064. Its totient is φ = 13471144.

The previous prime is 40413397. The next prime is 40413481. The reversal of 40413444 is 44431404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×40413444² = 3266492911882272, which contains 22 as substring.

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, 1683882 + ... + 1683905.

It is an arithmetic number, because the mean of its divisors is an integer number (7858172).

Almost surely, 2^40413444 is an apocalyptic number.

It is an amenable number.

40413444 is an abundant number, since it is smaller than the sum of its proper divisors (53884620).

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

40413444 is a wasteful number, since it uses less digits than its factorization.

40413444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367794 (or 3367792 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 40413444 is about 6357.1569117020. The cubic root of 40413444 is about 343.1694516417.

Adding to 40413444 its reverse (44431404), we get a palindrome (84844848).

The spelling of 40413444 in words is "forty million, four hundred thirteen thousand, four hundred forty-four".