41121810 has 128 divisors (see below), whose sum is σ = 120268800. Its totient is φ = 9987840.

The previous prime is 41121809. The next prime is 41121877. The reversal of 41121810 is 1812114.

It is a super-2 number, since 2×41121810² = 3382006515352200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1326495 + ... + 1326525.

It is an arithmetic number, because the mean of its divisors is an integer number (939600).

Almost surely, 2^41121810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41121810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60134400).

41121810 is an abundant number, since it is smaller than the sum of its proper divisors (79146990).

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

41121810 is a wasteful number, since it uses less digits than its factorization.

41121810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 41121810 is about 6412.6289460720. The cubic root of 41121810 is about 345.1628720575.

Adding to 41121810 its reverse (1812114), we get a palindrome (42933924).

The spelling of 41121810 in words is "forty-one million, one hundred twenty-one thousand, eight hundred ten".