40665254 has 8 divisors (see below), whose sum is σ = 69711888. Its totient is φ = 17427960.

The previous prime is 40665239. The next prime is 40665259. The reversal of 40665254 is 45256604.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40665254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40665259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452317 + ... + 1452344.

It is an arithmetic number, because the mean of its divisors is an integer number (8713986).

Almost surely, 2^40665254 is an apocalyptic number.

40665254 is a deficient number, since it is larger than the sum of its proper divisors (29046634).

40665254 is a wasteful number, since it uses less digits than its factorization.

40665254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904670.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 40665254 is about 6376.9313937034. The cubic root of 40665254 is about 343.8807218969.

The spelling of 40665254 in words is "forty million, six hundred sixty-five thousand, two hundred fifty-four".