40471944 has 32 divisors (see below), whose sum is σ = 103535520. Its totient is φ = 13176576.

The previous prime is 40471943. The next prime is 40471997. The reversal of 40471944 is 44917404.

It is a super-2 number, since 2×40471944² = 3275956502278272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40471943) 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, 18577 + ... + 20640.

It is an arithmetic number, because the mean of its divisors is an integer number (3235485).

Almost surely, 2^40471944 is an apocalyptic number.

It is an amenable number.

40471944 is an abundant number, since it is smaller than the sum of its proper divisors (63063576).

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

40471944 is a wasteful number, since it uses less digits than its factorization.

40471944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39269 (or 39265 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 40471944 is about 6361.7563612575. The cubic root of 40471944 is about 343.3349554285.

The spelling of 40471944 in words is "forty million, four hundred seventy-one thousand, nine hundred forty-four".