40128674 has 8 divisors (see below), whose sum is σ = 60918480. Its totient is φ = 19822516.

The previous prime is 40128659. The next prime is 40128679. The reversal of 40128674 is 47682104.

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

It is a super-2 number, since 2×40128674² = 3220620953996552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40128674.

It is not an unprimeable number, because it can be changed into a prime (40128679) 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, 120704 + ... + 121035.

It is an arithmetic number, because the mean of its divisors is an integer number (7614810).

Almost surely, 2^40128674 is an apocalyptic number.

40128674 is a deficient number, since it is larger than the sum of its proper divisors (20789806).

40128674 is a wasteful number, since it uses less digits than its factorization.

40128674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241824.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40128674 is about 6334.7197254496. The cubic root of 40128674 is about 342.3615125550.

The spelling of 40128674 in words is "forty million, one hundred twenty-eight thousand, six hundred seventy-four".