340140401 has 4 divisors (see below), whose sum is σ = 351112704. Its totient is φ = 329168100.

The previous prime is 340140347. The next prime is 340140421. The reversal of 340140401 is 104041043.

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 a cyclic number.

It is not a de Polignac number, because 340140401 - 2¹⁸ = 339878257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340140401.

It is not an unprimeable number, because it can be changed into a prime (340140421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486105 + ... + 5486166.

It is an arithmetic number, because the mean of its divisors is an integer number (87778176).

Almost surely, 2^340140401 is an apocalyptic number.

340140401 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

340140401 is a deficient number, since it is larger than the sum of its proper divisors (10972303).

340140401 is a wasteful number, since it uses less digits than its factorization.

340140401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10972302.

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

The square root of 340140401 is about 18442.8956782822. The cubic root of 340140401 is about 698.0492633599.

Adding to 340140401 its reverse (104041043), we get a palindrome (444181444).

The spelling of 340140401 in words is "three hundred forty million, one hundred forty thousand, four hundred one".