40170012 has 24 divisors (see below), whose sum is σ = 96264336. Its totient is φ = 13027968.

The previous prime is 40169993. The next prime is 40170043. The reversal of 40170012 is 21007104.

It is a super-2 number, since 2×40170012² = 3227259728160288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40169973 and 40170000.

It is a congruent number.

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, 44793 + ... + 45680.

It is an arithmetic number, because the mean of its divisors is an integer number (4011014).

Almost surely, 2^40170012 is an apocalyptic number.

It is an amenable number.

40170012 is an abundant number, since it is smaller than the sum of its proper divisors (56094324).

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

40170012 is a wasteful number, since it uses less digits than its factorization.

40170012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90517 (or 90515 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 40170012 is about 6337.9816976700. The cubic root of 40170012 is about 342.4790318739.

Adding to 40170012 its reverse (21007104), we get a palindrome (61177116).

The spelling of 40170012 in words is "forty million, one hundred seventy thousand, twelve".