40542201 has 20 divisors (see below), whose sum is σ = 69215872. Its totient is φ = 23166648.

The previous prime is 40542199. The next prime is 40542221. The reversal of 40542201 is 10224504.

It is not a de Polignac number, because 40542201 - 2¹ = 40542199 is a prime.

It is a super-5 number, since 5×40542201⁵ (a number of 39 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40542221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35185 + ... + 36318.

Almost surely, 2^40542201 is an apocalyptic number.

It is an amenable number.

40542201 is a deficient number, since it is larger than the sum of its proper divisors (28673671).

40542201 is an equidigital number, since it uses as much as digits as its factorization.

40542201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71522 (or 71513 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40542201 is about 6367.2757911056. The cubic root of 40542201 is about 343.5335105844.

Adding to 40542201 its reverse (10224504), we get a palindrome (50766705).

The spelling of 40542201 in words is "forty million, five hundred forty-two thousand, two hundred one".