40671012 has 12 divisors (see below), whose sum is σ = 94899056. Its totient is φ = 13557000.

The previous prime is 40671011. The next prime is 40671019. The reversal of 40671012 is 21017604.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 40671012.

It is not an unprimeable number, because it can be changed into a prime (40671011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694614 + ... + 1694637.

Almost surely, 2^40671012 is an apocalyptic number.

It is an amenable number.

40671012 is an abundant number, since it is smaller than the sum of its proper divisors (54228044).

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

40671012 is a wasteful number, since it uses less digits than its factorization.

40671012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389258 (or 3389256 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 40671012 is about 6377.3828487868. The cubic root of 40671012 is about 343.8969517373.

Adding to 40671012 its reverse (21017604), we get a palindrome (61688616).

The spelling of 40671012 in words is "forty million, six hundred seventy-one thousand, twelve".