40049810 has 16 divisors (see below), whose sum is σ = 72408600. Its totient is φ = 15949056.

The previous prime is 40049803. The next prime is 40049843. The reversal of 40049810 is 1894004.

It can be written as a sum of positive squares in 4 ways, for example, as 28015849 + 12033961 = 5293^2 + 3469^2 .

It is a super-2 number, since 2×40049810² = 3207974562072200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40049810.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6455 + ... + 11034.

Almost surely, 2^40049810 is an apocalyptic number.

40049810 is a deficient number, since it is larger than the sum of its proper divisors (32358790).

40049810 is a wasteful number, since it uses less digits than its factorization.

40049810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17725.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 40049810 is about 6328.4919214612. The cubic root of 40049810 is about 342.1370869555.

The spelling of 40049810 in words is "forty million, forty-nine thousand, eight hundred ten".