40323660 has 96 divisors (see below), whose sum is σ = 128786112. Its totient is φ = 9338880.

The previous prime is 40323649. The next prime is 40323671. The reversal of 40323660 is 6632304.

It is an interprime number because it is at equal distance from previous prime (40323649) and next prime (40323671).

It is a self number, because there is not a number n which added to its sum of digits gives 40323660.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11740 + ... + 14780.

It is an arithmetic number, because the mean of its divisors is an integer number (1341522).

Almost surely, 2^40323660 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 40323660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64393056).

40323660 is an abundant number, since it is smaller than the sum of its proper divisors (88462452).

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

40323660 is a wasteful number, since it uses less digits than its factorization.

40323660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3081 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 40323660 is about 6350.0913379258. The cubic root of 40323660 is about 342.9151305689.

Adding to 40323660 its reverse (6632304), we get a palindrome (46955964).

The spelling of 40323660 in words is "forty million, three hundred twenty-three thousand, six hundred sixty".