40389116 has 6 divisors (see below), whose sum is σ = 70680960. Its totient is φ = 20194556.

The previous prime is 40389109. The next prime is 40389119. The reversal of 40389116 is 61198304.

It is a happy number.

40389116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40389116² = 3262561382522912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40389119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5048636 + ... + 5048643.

It is an arithmetic number, because the mean of its divisors is an integer number (11780160).

Almost surely, 2^40389116 is an apocalyptic number.

It is an amenable number.

40389116 is a deficient number, since it is larger than the sum of its proper divisors (30291844).

40389116 is a wasteful number, since it uses less digits than its factorization.

40389116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10097283 (or 10097281 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 40389116 is about 6355.2431896820. The cubic root of 40389116 is about 343.1005776781.

The spelling of 40389116 in words is "forty million, three hundred eighty-nine thousand, one hundred sixteen".