40006810 has 16 divisors (see below), whose sum is σ = 72124416. Its totient is φ = 15977808.

The previous prime is 40006793. The next prime is 40006819. The reversal of 40006810 is 1860004.

It is a super-2 number, since 2×40006810² = 3201089692752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40006819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4519 + ... + 10021.

It is an arithmetic number, because the mean of its divisors is an integer number (4507776).

Almost surely, 2^40006810 is an apocalyptic number.

40006810 is a deficient number, since it is larger than the sum of its proper divisors (32117606).

40006810 is a wasteful number, since it uses less digits than its factorization.

40006810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 40006810 is about 6325.0936751956. The cubic root of 40006810 is about 342.0145964610.

Adding to 40006810 its reverse (1860004), we get a palindrome (41866814).

The spelling of 40006810 in words is "forty million, six thousand, eight hundred ten".