40100002 has 8 divisors (see below), whose sum is σ = 60262812. Its totient is φ = 20012400.

The previous prime is 40099987. The next prime is 40100003. The reversal of 40100002 is 20000104.

It can be written as a sum of positive squares in 2 ways, for example, as 38825361 + 1274641 = 6231^2 + 1129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40100003) 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 3 ways as a sum of consecutive naturals, for example, 17449 + ... + 19612.

Almost surely, 2^40100002 is an apocalyptic number.

40100002 is a deficient number, since it is larger than the sum of its proper divisors (20162810).

40100002 is a wasteful number, since it uses less digits than its factorization.

40100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37604.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 40100002 is about 6332.4562375116. The cubic root of 40100002 is about 342.2799538495.

Adding to 40100002 its reverse (20000104), we get a palindrome (60100106).

The spelling of 40100002 in words is "forty million, one hundred thousand, two".