40662500 has 36 divisors (see below), whose sum is σ = 88970868. Its totient is φ = 16260000.

The previous prime is 40662493. The next prime is 40662509. The reversal of 40662500 is 526604.

It can be written as a sum of positive squares in 6 ways, for example, as 20214016 + 20448484 = 4496^2 + 4522^2 .

It is not an unprimeable number, because it can be changed into a prime (40662509) 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, 10874 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (2471413).

Almost surely, 2^40662500 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 40662500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44485434).

40662500 is an abundant number, since it is smaller than the sum of its proper divisors (48308368).

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

40662500 is an equidigital number, since it uses as much as digits as its factorization.

40662500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282 (or 3260 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40662500 is about 6376.7154554677. The cubic root of 40662500 is about 343.8729587674.

The spelling of 40662500 in words is "forty million, six hundred sixty-two thousand, five hundred".