40070566 has 4 divisors (see below), whose sum is σ = 60105852. Its totient is φ = 20035282.

The previous prime is 40070549. The next prime is 40070567. The reversal of 40070566 is 66507004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40070567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017640 + ... + 10017643.

It is an arithmetic number, because the mean of its divisors is an integer number (15026463).

Almost surely, 2^40070566 is an apocalyptic number.

40070566 is a deficient number, since it is larger than the sum of its proper divisors (20035286).

40070566 is a wasteful number, since it uses less digits than its factorization.

40070566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20035285.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 40070566 is about 6330.1315942088. The cubic root of 40070566 is about 342.1961814593.

The spelling of 40070566 in words is "forty million, seventy thousand, five hundred sixty-six".