40174021 has 8 divisors (see below), whose sum is σ = 40803840. Its totient is φ = 39549168.

The previous prime is 40174007. The next prime is 40174027. The reversal of 40174021 is 12047104.

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

It is a cyclic number.

It is not a de Polignac number, because 40174021 - 2¹⁷ = 40042949 is a prime.

It is a super-2 number, since 2×40174021² = 3227903926616882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40174021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40174027) 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, 17100 + ... + 19306.

It is an arithmetic number, because the mean of its divisors is an integer number (5100480).

Almost surely, 2^40174021 is an apocalyptic number.

It is an amenable number.

40174021 is a deficient number, since it is larger than the sum of its proper divisors (629819).

40174021 is a wasteful number, since it uses less digits than its factorization.

40174021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40174021 is about 6338.2979576539. The cubic root of 40174021 is about 342.4904247239.

The spelling of 40174021 in words is "forty million, one hundred seventy-four thousand, twenty-one".