40401180 has 168 divisors, whose sum is σ = 135514512. Its totient is φ = 10077696.

The previous prime is 40401173. The next prime is 40401181. The reversal of 40401180 is 8110404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401181) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 247779 + ... + 247941.

It is an arithmetic number, because the mean of its divisors is an integer number (806634).

Almost surely, 2^40401180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40401180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67757256).

40401180 is an abundant number, since it is smaller than the sum of its proper divisors (95113332).

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

40401180 is a wasteful number, since it uses less digits than its factorization.

40401180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 190 counting only the distinct ones).

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

The square root of 40401180 is about 6356.1922563749. The cubic root of 40401180 is about 343.1347350100.

Adding to 40401180 its reverse (8110404), we get a palindrome (48511584).

The spelling of 40401180 in words is "forty million, four hundred one thousand, one hundred eighty".