40616140 has 24 divisors (see below), whose sum is σ = 86142672. Its totient is φ = 16084800.

The previous prime is 40616119. The next prime is 40616143. The reversal of 40616140 is 4161604.

It is not an unprimeable number, because it can be changed into a prime (40616143) 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, 8034 + ... + 12073.

It is an arithmetic number, because the mean of its divisors is an integer number (3589278).

Almost surely, 2^40616140 is an apocalyptic number.

It is an amenable number.

40616140 is an abundant number, since it is smaller than the sum of its proper divisors (45526532).

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

40616140 is a wasteful number, since it uses less digits than its factorization.

40616140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20217 (or 20215 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40616140 is about 6373.0793185084. The cubic root of 40616140 is about 343.7422239563.

Adding to 40616140 its reverse (4161604), we get a palindrome (44777744).

It can be divided in two parts, 4061 and 6140, that added together give a palindrome (10201).

The spelling of 40616140 in words is "forty million, six hundred sixteen thousand, one hundred forty".