40116690 has 24 divisors (see below), whose sum is σ = 104303628. Its totient is φ = 10697760.

The previous prime is 40116689. The next prime is 40116691. The reversal of 40116690 is 9661104.

It is an interprime number because it is at equal distance from previous prime (40116689) and next prime (40116691).

It can be written as a sum of positive squares in 2 ways, for example, as 40106889 + 9801 = 6333^2 + 99^2 .

It is a super-2 number, since 2×40116690² = 3218697633112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40116691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222781 + ... + 222960.

Almost surely, 2^40116690 is an apocalyptic number.

40116690 is an abundant number, since it is smaller than the sum of its proper divisors (64186938).

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

40116690 is a wasteful number, since it uses less digits than its factorization.

40116690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445754 (or 445751 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 40116690 is about 6333.7737566162. The cubic root of 40116690 is about 342.3274282918.

Adding to 40116690 its reverse (9661104), we get a palindrome (49777794).

It can be divided in two parts, 4011 and 6690, that added together give a palindrome (10701).

The spelling of 40116690 in words is "forty million, one hundred sixteen thousand, six hundred ninety".