40660352 has 32 divisors (see below), whose sum is σ = 82048800. Its totient is φ = 20067840.

The previous prime is 40660309. The next prime is 40660393. The reversal of 40660352 is 25306604.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8102 + ... + 12122.

It is an arithmetic number, because the mean of its divisors is an integer number (2564025).

Almost surely, 2^40660352 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 40660352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41024400).

40660352 is an abundant number, since it is smaller than the sum of its proper divisors (41388448).

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

40660352 is an equidigital number, since it uses as much as digits as its factorization.

40660352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 40660352 is about 6376.5470279768. The cubic root of 40660352 is about 343.8669036214.

Adding to 40660352 its reverse (25306604), we get a palindrome (65966956).

The spelling of 40660352 in words is "forty million, six hundred sixty thousand, three hundred fifty-two".