41515440 has 40 divisors (see below), whose sum is σ = 128698608. Its totient is φ = 11070720.

The previous prime is 41515433. The next prime is 41515447. The reversal of 41515440 is 4451514.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (41515433) and next prime (41515447).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 41515440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41515447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86251 + ... + 86730.

Almost surely, 2^41515440 is an apocalyptic number.

41515440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41515440 is an abundant number, since it is smaller than the sum of its proper divisors (87183168).

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

41515440 is a wasteful number, since it uses less digits than its factorization.

41515440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172997 (or 172991 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 41515440 is about 6443.2476283315. The cubic root of 41515440 is about 346.2607098739.

Adding to 41515440 its reverse (4451514), we get a palindrome (45966954).

It can be divided in two parts, 4151 and 5440, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 41515440 in words is "forty-one million, five hundred fifteen thousand, four hundred forty".