40070089 has 4 divisors (see below), whose sum is σ = 40183956. Its totient is φ = 39956224.

The previous prime is 40070077. The next prime is 40070099. The reversal of 40070089 is 98007004.

40070089 = T₅₁₆₇ + T₅₁₆₈ + T₅₁₆₉.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24601600 + 15468489 = 4960^2 + 3933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40070089 is a prime.

It is a super-2 number, since 2×40070089² = 3211224064935842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40070099) 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, 56404 + ... + 57109.

It is an arithmetic number, because the mean of its divisors is an integer number (10045989).

Almost surely, 2^40070089 is an apocalyptic number.

40070089 is the 5169-th centered triangular number.

It is an amenable number.

40070089 is a deficient number, since it is larger than the sum of its proper divisors (113867).

40070089 is a wasteful number, since it uses less digits than its factorization.

40070089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113866.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 40070089 is about 6330.0939171548. The cubic root of 40070089 is about 342.1948236195.

The spelling of 40070089 in words is "forty million, seventy thousand, eighty-nine".