40289064 has 16 divisors (see below), whose sum is σ = 100722720. Its totient is φ = 13429680.

The previous prime is 40289059. The next prime is 40289069. The reversal of 40289064 is 46098204.

It is an interprime number because it is at equal distance from previous prime (40289059) and next prime (40289069).

It is not an unprimeable number, because it can be changed into a prime (40289069) 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, 839332 + ... + 839379.

It is an arithmetic number, because the mean of its divisors is an integer number (6295170).

Almost surely, 2^40289064 is an apocalyptic number.

It is an amenable number.

40289064 is an abundant number, since it is smaller than the sum of its proper divisors (60433656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40289064 is a wasteful number, since it uses less digits than its factorization.

40289064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678720 (or 1678716 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40289064 is about 6347.3666980883. The cubic root of 40289064 is about 342.8170336016.

The spelling of 40289064 in words is "forty million, two hundred eighty-nine thousand, sixty-four".