40868836 has 12 divisors (see below), whose sum is σ = 71565228. Its totient is φ = 20421632.

The previous prime is 40868813. The next prime is 40868869. The reversal of 40868836 is 63886804.

It can be written as a sum of positive squares in 2 ways, for example, as 39062500 + 1806336 = 6250^2 + 1344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40868792 and 40868801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10920 + ... + 14176.

It is an arithmetic number, because the mean of its divisors is an integer number (5963769).

Almost surely, 2^40868836 is an apocalyptic number.

It is an amenable number.

40868836 is a deficient number, since it is larger than the sum of its proper divisors (30696392).

40868836 is a wasteful number, since it uses less digits than its factorization.

40868836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6398 (or 6396 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 40868836 is about 6392.8738451498. The cubic root of 40868836 is about 344.4536223091.

The spelling of 40868836 in words is "forty million, eight hundred sixty-eight thousand, eight hundred thirty-six".