40823155 has 8 divisors (see below), whose sum is σ = 50677200. Its totient is φ = 31532256.

The previous prime is 40823147. The next prime is 40823161. The reversal of 40823155 is 55132804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40823155 - 2³ = 40823147 is a prime.

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, 140625 + ... + 140914.

It is an arithmetic number, because the mean of its divisors is an integer number (6334650).

Almost surely, 2^40823155 is an apocalyptic number.

40823155 is a deficient number, since it is larger than the sum of its proper divisors (9854045).

40823155 is a wasteful number, since it uses less digits than its factorization.

40823155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281573.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 40823155 is about 6389.3000399105. The cubic root of 40823155 is about 344.3252371818.

Adding to 40823155 its reverse (55132804), we get a palindrome (95955959).

The spelling of 40823155 in words is "forty million, eight hundred twenty-three thousand, one hundred fifty-five".