40160064 has 56 divisors (see below), whose sum is σ = 121440448. Its totient is φ = 11473920.

The previous prime is 40160063. The next prime is 40160077. The reversal of 40160064 is 46006104.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×40160064² = 3225661480968192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 40160064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40160063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13597 + ... + 16284.

Almost surely, 2^40160064 is an apocalyptic number.

It is an amenable number.

40160064 is an abundant number, since it is smaller than the sum of its proper divisors (81280384).

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

40160064 is a wasteful number, since it uses less digits than its factorization.

40160064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29903 (or 29893 counting only the distinct ones).

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

The square root of 40160064 is about 6337.1968566552. The cubic root of 40160064 is about 342.4507581897.

Adding to 40160064 its reverse (46006104), we get a palindrome (86166168).

The spelling of 40160064 in words is "forty million, one hundred sixty thousand, sixty-four".