41980640 has 48 divisors (see below), whose sum is σ = 106813728. Its totient is φ = 15499776.

The previous prime is 41980619. The next prime is 41980643. The reversal of 41980640 is 4608914.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 41980597 and 41980606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41980643) 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, 8012 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (2225286).

Almost surely, 2^41980640 is an apocalyptic number.

41980640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41980640 is an abundant number, since it is smaller than the sum of its proper divisors (64833088).

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

41980640 is a wasteful number, since it uses less digits than its factorization.

41980640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211 (or 20203 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 41980640 is about 6479.2468698144. The cubic root of 41980640 is about 347.5492468549.

The spelling of 41980640 in words is "forty-one million, nine hundred eighty thousand, six hundred forty".