40565461 has 8 divisors (see below), whose sum is σ = 42036480. Its totient is φ = 39099312.

The previous prime is 40565429. The next prime is 40565471. The reversal of 40565461 is 16456504.

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 40565461 - 2⁵ = 40565429 is a prime.

It is a super-2 number, since 2×40565461² = 3291113252285042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40565401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27796 + ... + 29218.

It is an arithmetic number, because the mean of its divisors is an integer number (5254560).

Almost surely, 2^40565461 is an apocalyptic number.

It is an amenable number.

40565461 is a deficient number, since it is larger than the sum of its proper divisors (1471019).

40565461 is a wasteful number, since it uses less digits than its factorization.

40565461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 40565461 is about 6369.1020560201. The cubic root of 40565461 is about 343.5991957356.

The spelling of 40565461 in words is "forty million, five hundred sixty-five thousand, four hundred sixty-one".