40084816 has 10 divisors (see below), whose sum is σ = 77664362. Its totient is φ = 20042400.

The previous prime is 40084789. The next prime is 40084823. The reversal of 40084816 is 61848004.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 646416 = 6280^2 + 804^2 .

It is a congruent number.

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, 1252635 + ... + 1252666.

Almost surely, 2^40084816 is an apocalyptic number.

It is an amenable number.

40084816 is a deficient number, since it is larger than the sum of its proper divisors (37579546).

40084816 is a wasteful number, since it uses less digits than its factorization.

40084816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505309 (or 2505303 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 40084816 is about 6331.2570631747. The cubic root of 40084816 is about 342.2367408869.

The spelling of 40084816 in words is "forty million, eighty-four thousand, eight hundred sixteen".