41401440 has 72 divisors (see below), whose sum is σ = 141287328. Its totient is φ = 11040000.

The previous prime is 41401417. The next prime is 41401441. The reversal of 41401440 is 4410414.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41401441) 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, 12936 + ... + 15815.

It is an arithmetic number, because the mean of its divisors is an integer number (1962324).

Almost surely, 2^41401440 is an apocalyptic number.

41401440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41401440 is an abundant number, since it is smaller than the sum of its proper divisors (99885888).

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

41401440 is a wasteful number, since it uses less digits than its factorization.

41401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28772 (or 28761 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 41401440 is about 6434.3950764621. The cubic root of 41401440 is about 345.9434792459.

Adding to 41401440 its reverse (4410414), we get a palindrome (45811854).

The spelling of 41401440 in words is "forty-one million, four hundred one thousand, four hundred forty".