4181040 has 60 divisors (see below), whose sum is σ = 14043744. Its totient is φ = 1114752.

The previous prime is 4180987. The next prime is 4181041. The reversal of 4181040 is 401814.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (4181041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2184 + ... + 3623.

Almost surely, 2^4181040 is an apocalyptic number.

4181040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4181040 is an abundant number, since it is smaller than the sum of its proper divisors (9862704).

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

4181040 is a wasteful number, since it uses less digits than its factorization.

4181040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5826 (or 5817 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4181040 is about 2044.7591545216. The cubic root of 4181040 is about 161.0997157572.

Adding to 4181040 its reverse (401814), we get a palindrome (4582854).

The spelling of 4181040 in words is "four million, one hundred eighty-one thousand, forty".