40289672 has 8 divisors (see below), whose sum is σ = 75543150. Its totient is φ = 20144832.

The previous prime is 40289663. The next prime is 40289687. The reversal of 40289672 is 27698204.

It can be written as a sum of positive squares in only one way, i.e., 40271716 + 17956 = 6346^2 + 134^2 .

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

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2518097 + ... + 2518112.

Almost surely, 2^40289672 is an apocalyptic number.

It is an amenable number.

40289672 is a deficient number, since it is larger than the sum of its proper divisors (35253478).

40289672 is a wasteful number, since it uses less digits than its factorization.

40289672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036215 (or 5036211 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 40289672 is about 6347.4145917846. The cubic root of 40289672 is about 342.8187580705.

The spelling of 40289672 in words is "forty million, two hundred eighty-nine thousand, six hundred seventy-two".