40341021 has 16 divisors (see below), whose sum is σ = 61845504. Its totient is φ = 22911984.

The previous prime is 40341019. The next prime is 40341023. The reversal of 40341021 is 12014304.

It is an interprime number because it is at equal distance from previous prime (40341019) and next prime (40341023).

It is not a de Polignac number, because 40341021 - 2¹ = 40341019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40341023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2245 + ... + 9258.

It is an arithmetic number, because the mean of its divisors is an integer number (3865344).

Almost surely, 2^40341021 is an apocalyptic number.

It is an amenable number.

40341021 is a deficient number, since it is larger than the sum of its proper divisors (21504483).

40341021 is a wasteful number, since it uses less digits than its factorization.

40341021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40341021 is about 6351.4581790326. The cubic root of 40341021 is about 342.9643365471.

Adding to 40341021 its reverse (12014304), we get a palindrome (52355325).

The spelling of 40341021 in words is "forty million, three hundred forty-one thousand, twenty-one".