40196566 has 8 divisors (see below), whose sum is σ = 60656400. Its totient is φ = 19977768.

The previous prime is 40196549. The next prime is 40196573. The reversal of 40196566 is 66569104.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59841 + ... + 60508.

It is an arithmetic number, because the mean of its divisors is an integer number (7582050).

Almost surely, 2^40196566 is an apocalyptic number.

40196566 is a deficient number, since it is larger than the sum of its proper divisors (20459834).

40196566 is a wasteful number, since it uses less digits than its factorization.

40196566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120518.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 40196566 is about 6340.0761825076. The cubic root of 40196566 is about 342.5544794081.

It can be divided in two parts, 4019 and 6566, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 40196566 in words is "forty million, one hundred ninety-six thousand, five hundred sixty-six".