40441320 has 48 divisors (see below), whose sum is σ = 131435460. Its totient is φ = 10784256.

The previous prime is 40441277. The next prime is 40441327. The reversal of 40441320 is 2314404.

It can be written as a sum of positive squares in 2 ways, for example, as 39765636 + 675684 = 6306^2 + 822^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40441293 and 40441302.

It is not an unprimeable number, because it can be changed into a prime (40441327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55809 + ... + 56528.

Almost surely, 2^40441320 is an apocalyptic number.

40441320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40441320 is an abundant number, since it is smaller than the sum of its proper divisors (90994140).

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

40441320 is a wasteful number, since it uses less digits than its factorization.

40441320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112354 (or 112347 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40441320 is about 6359.3490232885. The cubic root of 40441320 is about 343.2483362243.

Adding to 40441320 its reverse (2314404), we get a palindrome (42755724).

The spelling of 40441320 in words is "forty million, four hundred forty-one thousand, three hundred twenty".