40608064 has 84 divisors (see below), whose sum is σ = 97987104. Its totient is φ = 16617216.

The previous prime is 40608049. The next prime is 40608083. The reversal of 40608064 is 46080604.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71847 + ... + 72409.

Almost surely, 2^40608064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40608064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48993552).

40608064 is an abundant number, since it is smaller than the sum of its proper divisors (57379040).

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

40608064 is a wasteful number, since it uses less digits than its factorization.

40608064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40608064 is about 6372.4456843507. The cubic root of 40608064 is about 343.7194395311.

Adding to 40608064 its reverse (46080604), we get a palindrome (86688668).

The spelling of 40608064 in words is "forty million, six hundred eight thousand, sixty-four".