40666054 has 16 divisors (see below), whose sum is σ = 71663760. Its totient is φ = 17062560.

The previous prime is 40666051. The next prime is 40666063. The reversal of 40666054 is 45066604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666051) 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, 70809 + ... + 71380.

It is an arithmetic number, because the mean of its divisors is an integer number (4478985).

Almost surely, 2^40666054 is an apocalyptic number.

40666054 is a deficient number, since it is larger than the sum of its proper divisors (30997706).

40666054 is a wasteful number, since it uses less digits than its factorization.

40666054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142215.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 40666054 is about 6376.9941194892. The cubic root of 40666054 is about 343.8829769160.

The spelling of 40666054 in words is "forty million, six hundred sixty-six thousand, fifty-four".