340440101 has 4 divisors (see below), whose sum is σ = 345235104. Its totient is φ = 335645100.

The previous prime is 340440091. The next prime is 340440103. The reversal of 340440101 is 101044043.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101044043 = 397 ⋅254519.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340440101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 340440101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340440103) 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, 2397395 + ... + 2397536.

It is an arithmetic number, because the mean of its divisors is an integer number (86308776).

Almost surely, 2^340440101 is an apocalyptic number.

It is an amenable number.

340440101 is a deficient number, since it is larger than the sum of its proper divisors (4795003).

340440101 is an equidigital number, since it uses as much as digits as its factorization.

340440101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795002.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 340440101 is about 18451.0189691518. The cubic root of 340440101 is about 698.2542218120.

Adding to 340440101 its reverse (101044043), we get a palindrome (441484144).

The spelling of 340440101 in words is "three hundred forty million, four hundred forty thousand, one hundred one".