40453660 has 72 divisors (see below), whose sum is σ = 96780096. Its totient is φ = 14117760.

The previous prime is 40453639. The next prime is 40453663. The reversal of 40453660 is 6635404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40453663) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 93645 + ... + 94075.

It is an arithmetic number, because the mean of its divisors is an integer number (1344168).

Almost surely, 2^40453660 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 40453660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48390048).

40453660 is an abundant number, since it is smaller than the sum of its proper divisors (56326436).

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

40453660 is a wasteful number, since it uses less digits than its factorization.

40453660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40453660 is about 6360.3191743811. The cubic root of 40453660 is about 343.2832448584.

The spelling of 40453660 in words is "forty million, four hundred fifty-three thousand, six hundred sixty".