40919810 has 16 divisors (see below), whose sum is σ = 73729656. Its totient is φ = 16351488.

The previous prime is 40919803. The next prime is 40919839. The reversal of 40919810 is 1891904.

It can be written as a sum of positive squares in 4 ways, for example, as 39100009 + 1819801 = 6253^2 + 1349^2 .

It is a super-2 number, since 2×40919810² = 3348861700872200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15722 + ... + 18138.

Almost surely, 2^40919810 is an apocalyptic number.

40919810 is a deficient number, since it is larger than the sum of its proper divisors (32809846).

40919810 is a wasteful number, since it uses less digits than its factorization.

40919810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 40919810 is about 6396.8593856673. The cubic root of 40919810 is about 344.5967703721.

The spelling of 40919810 in words is "forty million, nine hundred nineteen thousand, eight hundred ten".