40412185 has 12 divisors (see below), whose sum is σ = 53304804. Its totient is φ = 29390240.

The previous prime is 40412171. The next prime is 40412191. The reversal of 40412185 is 58121404.

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 28933641 = 3388^2 + 5379^2 .

It is not a de Polignac number, because 40412185 - 2⁹ = 40411673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32794 + ... + 34003.

It is an arithmetic number, because the mean of its divisors is an integer number (4442067).

Almost surely, 2^40412185 is an apocalyptic number.

It is an amenable number.

40412185 is a deficient number, since it is larger than the sum of its proper divisors (12892619).

40412185 is a wasteful number, since it uses less digits than its factorization.

40412185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66824 (or 66813 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 40412185 is about 6357.0578886777. The cubic root of 40412185 is about 343.1658880188.

Adding to 40412185 its reverse (58121404), we get a palindrome (98533589).

It can be divided in two parts, 4041 and 2185, that added together give a palindrome (6226).

The spelling of 40412185 in words is "forty million, four hundred twelve thousand, one hundred eighty-five".