40012064 has 24 divisors (see below), whose sum is σ = 80697708. Its totient is φ = 19517440.

The previous prime is 40012051. The next prime is 40012097. The reversal of 40012064 is 46021004.

It can be written as a sum of positive squares in 2 ways, for example, as 39187600 + 824464 = 6260^2 + 908^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13937 + ... + 16560.

Almost surely, 2^40012064 is an apocalyptic number.

It is an amenable number.

40012064 is an abundant number, since it is smaller than the sum of its proper divisors (40685644).

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

40012064 is a wasteful number, since it uses less digits than its factorization.

40012064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30548 (or 30540 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40012064 is about 6325.5089913777. The cubic root of 40012064 is about 342.0295677958.

Adding to 40012064 its reverse (46021004), we get a palindrome (86033068).

The spelling of 40012064 in words is "forty million, twelve thousand, sixty-four".