40162811 has 4 divisors (see below), whose sum is σ = 43252272. Its totient is φ = 37073352.

The previous prime is 40162741. The next prime is 40162819. The reversal of 40162811 is 11826104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40162811 - 2²² = 35968507 is a prime.

It is a super-2 number, since 2×40162811² = 3226102774843442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40162819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544711 + ... + 1544736.

It is an arithmetic number, because the mean of its divisors is an integer number (10813068).

Almost surely, 2^40162811 is an apocalyptic number.

40162811 is a deficient number, since it is larger than the sum of its proper divisors (3089461).

40162811 is a wasteful number, since it uses less digits than its factorization.

40162811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089460.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 40162811 is about 6337.4135891545. The cubic root of 40162811 is about 342.4585660357.

Adding to 40162811 its reverse (11826104), we get a palindrome (51988915).

The spelling of 40162811 in words is "forty million, one hundred sixty-two thousand, eight hundred eleven".