40441544 has 128 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 15375360.

The previous prime is 40441537. The next prime is 40441553. The reversal of 40441544 is 44514404.

It is a super-2 number, since 2×40441544² = 3271036962207872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 763022 + ... + 763074.

It is an arithmetic number, because the mean of its divisors is an integer number (765450).

Almost surely, 2^40441544 is an apocalyptic number.

40441544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40441544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48988800).

40441544 is an abundant number, since it is smaller than the sum of its proper divisors (57536056).

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

40441544 is a wasteful number, since it uses less digits than its factorization.

40441544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 40441544 is about 6359.3666351296. The cubic root of 40441544 is about 343.2489699613.

Adding to 40441544 its reverse (44514404), we get a palindrome (84955948).

The spelling of 40441544 in words is "forty million, four hundred forty-one thousand, five hundred forty-four".