41312640 has 64 divisors (see below), whose sum is σ = 131690160. Its totient is φ = 11016192.

The previous prime is 41312639. The next prime is 41312641. The reversal of 41312640 is 4621314.

It is an interprime number because it is at equal distance from previous prime (41312639) and next prime (41312641).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41312641) 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, 8839 + ... + 12678.

Almost surely, 2^41312640 is an apocalyptic number.

41312640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41312640 is an abundant number, since it is smaller than the sum of its proper divisors (90377520).

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

41312640 is a wasteful number, since it uses less digits than its factorization.

41312640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21539 (or 21527 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 41312640 is about 6427.4909568198. The cubic root of 41312640 is about 345.6959695755.

Adding to 41312640 its reverse (4621314), we get a palindrome (45933954).

The spelling of 41312640 in words is "forty-one million, three hundred twelve thousand, six hundred forty".