40116390 has 32 divisors (see below), whose sum is σ = 97445376. Its totient is φ = 10568160.

The previous prime is 40116383. The next prime is 40116397. The reversal of 40116390 is 9361104.

It is an interprime number because it is at equal distance from previous prime (40116383) and next prime (40116397).

It is a self number, because there is not a number n which added to its sum of digits gives 40116390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40116397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5566 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (3045168).

Almost surely, 2^40116390 is an apocalyptic number.

40116390 is an abundant number, since it is smaller than the sum of its proper divisors (57328986).

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

40116390 is a wasteful number, since it uses less digits than its factorization.

40116390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16204.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 40116390 is about 6333.7500740083. The cubic root of 40116390 is about 342.3265749605.

Adding to 40116390 its reverse (9361104), we get a palindrome (49477494).

It can be divided in two parts, 4011 and 6390, that added together give a palindrome (10401).

The spelling of 40116390 in words is "forty million, one hundred sixteen thousand, three hundred ninety".