40824261 has 6 divisors (see below), whose sum is σ = 58968390. Its totient is φ = 27216168.

The previous prime is 40824229. The next prime is 40824263. The reversal of 40824261 is 16242804.

It can be written as a sum of positive squares in only one way, i.e., 40564161 + 260100 = 6369^2 + 510^2 .

It is not a de Polignac number, because 40824261 - 2⁵ = 40824229 is a prime.

It is a super-2 number, since 2×40824261² = 3333240572392242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40824263) 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, 2268006 + ... + 2268023.

It is an arithmetic number, because the mean of its divisors is an integer number (9828065).

Almost surely, 2^40824261 is an apocalyptic number.

It is an amenable number.

40824261 is a deficient number, since it is larger than the sum of its proper divisors (18144129).

40824261 is a wasteful number, since it uses less digits than its factorization.

40824261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536035 (or 4536032 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 40824261 is about 6389.3865902761. The cubic root of 40824261 is about 344.3283466938.

The spelling of 40824261 in words is "forty million, eight hundred twenty-four thousand, two hundred sixty-one".