40180752 has 80 divisors (see below), whose sum is σ = 116093760. Its totient is φ = 13305600.

The previous prime is 40180727. The next prime is 40180757. The reversal of 40180752 is 25708104.

It is a super-2 number, since 2×40180752² = 3228985662571008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40180757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121227 + ... + 121557.

It is an arithmetic number, because the mean of its divisors is an integer number (1451172).

Almost surely, 2^40180752 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 40180752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58046880).

40180752 is an abundant number, since it is smaller than the sum of its proper divisors (75913008).

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

40180752 is a wasteful number, since it uses less digits than its factorization.

40180752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 40180752 is about 6338.8289139241. The cubic root of 40180752 is about 342.5095512992.

Adding to 40180752 its reverse (25708104), we get a palindrome (65888856).

The spelling of 40180752 in words is "forty million, one hundred eighty thousand, seven hundred fifty-two".