40587970 has 8 divisors (see below), whose sum is σ = 73058364. Its totient is φ = 16235184.

The previous prime is 40587949. The next prime is 40587973. The reversal of 40587970 is 7978504.

It can be written as a sum of positive squares in 2 ways, for example, as 37124649 + 3463321 = 6093^2 + 1861^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40587973) 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, 2029389 + ... + 2029408.

Almost surely, 2^40587970 is an apocalyptic number.

40587970 is a deficient number, since it is larger than the sum of its proper divisors (32470394).

40587970 is a wasteful number, since it uses less digits than its factorization.

40587970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058804.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 40587970 is about 6370.8688575421. The cubic root of 40587970 is about 343.6627361963.

The spelling of 40587970 in words is "forty million, five hundred eighty-seven thousand, nine hundred seventy".