40570489 has 4 divisors (see below), whose sum is σ = 40740480. Its totient is φ = 40400500.

The previous prime is 40570487. The next prime is 40570511. The reversal of 40570489 is 98407504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40570489 - 2¹ = 40570487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40570487) 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, 84637 + ... + 85114.

It is an arithmetic number, because the mean of its divisors is an integer number (10185120).

Almost surely, 2^40570489 is an apocalyptic number.

It is an amenable number.

40570489 is a deficient number, since it is larger than the sum of its proper divisors (169991).

40570489 is a wasteful number, since it uses less digits than its factorization.

40570489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169990.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 40570489 is about 6369.4967619114. The cubic root of 40570489 is about 343.6133912716.

The spelling of 40570489 in words is "forty million, five hundred seventy thousand, four hundred eighty-nine".