40242500 has 30 divisors (see below), whose sum is σ = 88007766. Its totient is φ = 16096000.

The previous prime is 40242497. The next prime is 40242509. The reversal of 40242500 is 524204.

It can be written as a sum of positive squares in 5 ways, for example, as 14273284 + 25969216 = 3778^2 + 5096^2 .

It is not an unprimeable number, because it can be changed into a prime (40242509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5549 + ... + 10548.

Almost surely, 2^40242500 is an apocalyptic number.

It is an amenable number.

40242500 is an abundant number, since it is smaller than the sum of its proper divisors (47765266).

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

40242500 is a wasteful number, since it uses less digits than its factorization.

40242500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16121 (or 16104 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 40242500 is about 6343.6976598826. The cubic root of 40242500 is about 342.6849126700.

Adding to 40242500 its reverse (524204), we get a palindrome (40766704).

The spelling of 40242500 in words is "forty million, two hundred forty-two thousand, five hundred".