40071489 has 4 divisors (see below), whose sum is σ = 53428656. Its totient is φ = 26714324.

The previous prime is 40071467. The next prime is 40071509. The reversal of 40071489 is 98417004.

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 40071489 - 2¹¹ = 40069441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40071439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6678579 + ... + 6678584.

It is an arithmetic number, because the mean of its divisors is an integer number (13357164).

Almost surely, 2^40071489 is an apocalyptic number.

It is an amenable number.

40071489 is a deficient number, since it is larger than the sum of its proper divisors (13357167).

40071489 is a wasteful number, since it uses less digits than its factorization.

40071489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357166.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40071489 is about 6330.2044990664. The cubic root of 40071489 is about 342.1988088629.

The spelling of 40071489 in words is "forty million, seventy-one thousand, four hundred eighty-nine".