40667973 has 8 divisors (see below), whose sum is σ = 54344448. Its totient is φ = 27051744.

The previous prime is 40667971. The next prime is 40667987. The reversal of 40667973 is 37976604.

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

It is not a de Polignac number, because 40667973 - 2¹ = 40667971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40667971) 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, 13461 + ... + 16202.

It is an arithmetic number, because the mean of its divisors is an integer number (6793056).

Almost surely, 2^40667973 is an apocalyptic number.

It is an amenable number.

40667973 is a deficient number, since it is larger than the sum of its proper divisors (13676475).

40667973 is a wasteful number, since it uses less digits than its factorization.

40667973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30123.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 40667973 is about 6377.1445804529. The cubic root of 40667973 is about 343.8883860225. Note that the first 3 decimals are identical.

The spelling of 40667973 in words is "forty million, six hundred sixty-seven thousand, nine hundred seventy-three".