40016064 has 56 divisors (see below), whose sum is σ = 115507008. Its totient is φ = 12125440.

The previous prime is 40016051. The next prime is 40016077. The reversal of 40016064 is 46061004.

It is an interprime number because it is at equal distance from previous prime (40016051) and next prime (40016077).

It is a self number, because there is not a number n which added to its sum of digits gives 40016064.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7362 + ... + 11585.

Almost surely, 2^40016064 is an apocalyptic number.

40016064 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40016064 is an abundant number, since it is smaller than the sum of its proper divisors (75490944).

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

40016064 is a wasteful number, since it uses less digits than its factorization.

40016064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18973 (or 18963 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40016064 is about 6325.8251635656. The cubic root of 40016064 is about 342.0409649641.

Adding to 40016064 its reverse (46061004), we get a palindrome (86077068).

The spelling of 40016064 in words is "forty million, sixteen thousand, sixty-four".