40242110421 has 4 divisors (see below), whose sum is σ = 53656147232. Its totient is φ = 26828073612.

The previous prime is 40242110411. The next prime is 40242110431. The reversal of 40242110421 is 12401124204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40242110411) and next prime (40242110431).

It is not a de Polignac number, because 40242110421 - 2¹⁴ = 40242094037 is a prime.

It is a super-2 number, since 2×40242110421² (a number of 22 digits) 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 (40242110411) 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, 6707018401 + ... + 6707018406.

It is an arithmetic number, because the mean of its divisors is an integer number (13414036808).

Almost surely, 2^40242110421 is an apocalyptic number.

It is an amenable number.

40242110421 is a deficient number, since it is larger than the sum of its proper divisors (13414036811).

40242110421 is a wasteful number, since it uses less digits than its factorization.

40242110421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414036810.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 40242110421 its reverse (12401124204), we get a palindrome (52643234625).

The spelling of 40242110421 in words is "forty billion, two hundred forty-two million, one hundred ten thousand, four hundred twenty-one".