40089064 has 8 divisors (see below), whose sum is σ = 75167010. Its totient is φ = 20044528.

The previous prime is 40089061. The next prime is 40089067. The reversal of 40089064 is 46098004.

It is an interprime number because it is at equal distance from previous prime (40089061) and next prime (40089067).

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 20164 = 6330^2 + 142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40089061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505559 + ... + 2505574.

Almost surely, 2^40089064 is an apocalyptic number.

It is an amenable number.

40089064 is a deficient number, since it is larger than the sum of its proper divisors (35077946).

40089064 is a wasteful number, since it uses less digits than its factorization.

40089064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011139 (or 5011135 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 40089064 is about 6331.5925326888. The cubic root of 40089064 is about 342.2488300058.

The spelling of 40089064 in words is "forty million, eighty-nine thousand, sixty-four".