40340101 has 4 divisors (see below), whose sum is σ = 41430412. Its totient is φ = 39249792.

The previous prime is 40340089. The next prime is 40340119. The reversal of 40340101 is 10104304.

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 35820225 + 4519876 = 5985^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 40340101 - 2²¹ = 38242949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340191) 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, 545100 + ... + 545173.

It is an arithmetic number, because the mean of its divisors is an integer number (10357603).

Almost surely, 2^40340101 is an apocalyptic number.

It is an amenable number.

40340101 is a deficient number, since it is larger than the sum of its proper divisors (1090311).

40340101 is a wasteful number, since it uses less digits than its factorization.

40340101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090310.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40340101 is about 6351.3857543059. The cubic root of 40340101 is about 342.9617293615.

Adding to 40340101 its reverse (10104304), we get a palindrome (50444405).

It can be divided in two parts, 403 and 40101, that added together give a palindrome (40504).

The spelling of 40340101 in words is "forty million, three hundred forty thousand, one hundred one".