40522417 has 4 divisors (see below), whose sum is σ = 43639540. Its totient is φ = 37405296.

The previous prime is 40522411. The next prime is 40522457. The reversal of 40522417 is 71422504.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23415921 + 17106496 = 4839^2 + 4136^2 .

It is a cyclic number.

It is not a de Polignac number, because 40522417 - 2¹⁵ = 40489649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40522391 and 40522400.

It is not an unprimeable number, because it can be changed into a prime (40522411) 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, 1558542 + ... + 1558567.

It is an arithmetic number, because the mean of its divisors is an integer number (10909885).

Almost surely, 2^40522417 is an apocalyptic number.

It is an amenable number.

40522417 is a deficient number, since it is larger than the sum of its proper divisors (3117123).

40522417 is a wasteful number, since it uses less digits than its factorization.

40522417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117122.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 40522417 is about 6365.7220328883. The cubic root of 40522417 is about 343.4776217194.

It can be divided in two parts, 405 and 22417, that added together give a palindrome (22822).

The spelling of 40522417 in words is "forty million, five hundred twenty-two thousand, four hundred seventeen".