40870646 has 8 divisors (see below), whose sum is σ = 61335120. Its totient is φ = 20425608.

The previous prime is 40870639. The next prime is 40870649. The reversal of 40870646 is 64607804.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40870649) 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, 2840 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (7666890).

Almost surely, 2^40870646 is an apocalyptic number.

40870646 is a deficient number, since it is larger than the sum of its proper divisors (20464474).

40870646 is a wasteful number, since it uses less digits than its factorization.

40870646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9718.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 40870646 is about 6393.0154074584. The cubic root of 40870646 is about 344.4587072908.

The spelling of 40870646 in words is "forty million, eight hundred seventy thousand, six hundred forty-six".