40466661 has 8 divisors (see below), whose sum is σ = 54043584. Its totient is φ = 26933760.

The previous prime is 40466659. The next prime is 40466677. The reversal of 40466661 is 16666404.

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

It is not a de Polignac number, because 40466661 - 2¹ = 40466659 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40466611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8796 + ... + 12581.

It is an arithmetic number, because the mean of its divisors is an integer number (6755448).

Almost surely, 2^40466661 is an apocalyptic number.

It is an amenable number.

40466661 is a deficient number, since it is larger than the sum of its proper divisors (13576923).

40466661 is a wasteful number, since it uses less digits than its factorization.

40466661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22011.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 40466661 is about 6361.3411321827. The cubic root of 40466661 is about 343.3200157170.

The spelling of 40466661 in words is "forty million, four hundred sixty-six thousand, six hundred sixty-one".