40666254 has 32 divisors (see below), whose sum is σ = 85722624. Its totient is φ = 12835680.

The previous prime is 40666229. The next prime is 40666259. The reversal of 40666254 is 45266604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12784 + ... + 15644.

It is an arithmetic number, because the mean of its divisors is an integer number (2678832).

Almost surely, 2^40666254 is an apocalyptic number.

40666254 is an abundant number, since it is smaller than the sum of its proper divisors (45056370).

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

40666254 is a wasteful number, since it uses less digits than its factorization.

40666254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40666254 is about 6377.0098008393. The cubic root of 40666254 is about 343.8835406661.

The spelling of 40666254 in words is "forty million, six hundred sixty-six thousand, two hundred fifty-four".