40675021 has 8 divisors (see below), whose sum is σ = 41215104. Its totient is φ = 40138800.

The previous prime is 40675001. The next prime is 40675027. The reversal of 40675021 is 12057604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40675021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40675027) 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, 24411 + ... + 26023.

It is an arithmetic number, because the mean of its divisors is an integer number (5151888).

Almost surely, 2^40675021 is an apocalyptic number.

It is an amenable number.

40675021 is a deficient number, since it is larger than the sum of its proper divisors (540083).

40675021 is a wasteful number, since it uses less digits than its factorization.

40675021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 40675021 is about 6377.6971549298. The cubic root of 40675021 is about 343.9082508380.

The spelling of 40675021 in words is "forty million, six hundred seventy-five thousand, twenty-one".