40180512 has 48 divisors (see below), whose sum is σ = 105924672. Its totient is φ = 13336320.

The previous prime is 40180507. The next prime is 40180531. The reversal of 40180512 is 21508104.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×40180512² = 3228947089164288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25837 + ... + 27347.

It is an arithmetic number, because the mean of its divisors is an integer number (2206764).

Almost surely, 2^40180512 is an apocalyptic number.

It is an amenable number.

40180512 is an abundant number, since it is smaller than the sum of its proper divisors (65744160).

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

40180512 is a wasteful number, since it uses less digits than its factorization.

40180512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1793 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 40180512 is about 6338.8099829542. The cubic root of 40180512 is about 342.5088693602.

Adding to 40180512 its reverse (21508104), we get a palindrome (61688616).

The spelling of 40180512 in words is "forty million, one hundred eighty thousand, five hundred twelve".