40566996 has 18 divisors (see below), whose sum is σ = 102544442. Its totient is φ = 13522320.

The previous prime is 40566973. The next prime is 40567019. The reversal of 40566996 is 69966504.

It is an interprime number because it is at equal distance from previous prime (40566973) and next prime (40567019).

It can be written as a sum of positive squares in only one way, i.e., 31203396 + 9363600 = 5586^2 + 3060^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563395 + ... + 563466.

Almost surely, 2^40566996 is an apocalyptic number.

It is an amenable number.

40566996 is an abundant number, since it is smaller than the sum of its proper divisors (61977446).

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

40566996 is a wasteful number, since it uses less digits than its factorization.

40566996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126871 (or 1126866 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 40566996 is about 6369.2225585231. Note that the first 3 decimals coincide. The cubic root of 40566996 is about 343.6035296205.

The spelling of 40566996 in words is "forty million, five hundred sixty-six thousand, nine hundred ninety-six".