40144833 has 6 divisors (see below), whose sum is σ = 57986994. Its totient is φ = 26763216.

The previous prime is 40144831. The next prime is 40144849. The reversal of 40144833 is 33844104.

It can be written as a sum of positive squares in only one way, i.e., 38526849 + 1617984 = 6207^2 + 1272^2 .

It is not a de Polignac number, because 40144833 - 2¹ = 40144831 is a prime.

It is a super-2 number, since 2×40144833² = 3223215233195778, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40144797 and 40144806.

It is not an unprimeable number, because it can be changed into a prime (40144831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2230260 + ... + 2230277.

It is an arithmetic number, because the mean of its divisors is an integer number (9664499).

Almost surely, 2^40144833 is an apocalyptic number.

It is an amenable number.

40144833 is a deficient number, since it is larger than the sum of its proper divisors (17842161).

40144833 is a wasteful number, since it uses less digits than its factorization.

40144833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460543 (or 4460540 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40144833 is about 6335.9950284071. The cubic root of 40144833 is about 342.4074603917.

Adding to 40144833 its reverse (33844104), we get a palindrome (73988937).

The spelling of 40144833 in words is "forty million, one hundred forty-four thousand, eight hundred thirty-three".