40712170 has 8 divisors (see below), whose sum is σ = 73281924. Its totient is φ = 16284864.

The previous prime is 40712159. The next prime is 40712171. The reversal of 40712170 is 7121704.

It can be written as a sum of positive squares in 2 ways, for example, as 37933281 + 2778889 = 6159^2 + 1667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40712170² = 3314961572217800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40712171) 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, 2035599 + ... + 2035618.

Almost surely, 2^40712170 is an apocalyptic number.

40712170 is a deficient number, since it is larger than the sum of its proper divisors (32569754).

40712170 is a wasteful number, since it uses less digits than its factorization.

40712170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071224.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 40712170 is about 6380.6089051124. The cubic root of 40712170 is about 344.0129175337.

Adding to 40712170 its reverse (7121704), we get a palindrome (47833874).

It can be divided in two parts, 4071 and 2170, that added together give a square (6241 = 79²).

The spelling of 40712170 in words is "forty million, seven hundred twelve thousand, one hundred seventy".