41478990 has 128 divisors (see below), whose sum is σ = 120960000. Its totient is φ = 9088128.

The previous prime is 41478977. The next prime is 41478991. The reversal of 41478990 is 9987414.

It is a super-2 number, since 2×41478990² = 3441013222840200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41478991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 298341 + ... + 298479.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 2^41478990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41478990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60480000).

41478990 is an abundant number, since it is smaller than the sum of its proper divisors (79481010).

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

41478990 is a wasteful number, since it uses less digits than its factorization.

41478990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 41478990 is about 6440.4184646652. The cubic root of 41478990 is about 346.1593427807.

The spelling of 41478990 in words is "forty-one million, four hundred seventy-eight thousand, nine hundred ninety".