40700521 has 8 divisors (see below), whose sum is σ = 41446944. Its totient is φ = 39960960.

The previous prime is 40700509. The next prime is 40700549. The reversal of 40700521 is 12500704.

It is the 2605-th star number.

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 40700521 - 2¹¹ = 40698473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40700221) 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, 11106 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (5180868).

Almost surely, 2^40700521 is an apocalyptic number.

It is an amenable number.

40700521 is a deficient number, since it is larger than the sum of its proper divisors (746423).

40700521 is a wasteful number, since it uses less digits than its factorization.

40700521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 40700521 is about 6379.6959958920. The cubic root of 40700521 is about 343.9801035229.

The spelling of 40700521 in words is "forty million, seven hundred thousand, five hundred twenty-one".