340144457 has 8 divisors (see below), whose sum is σ = 345425472. Its totient is φ = 334877200.

The previous prime is 340144423. The next prime is 340144459. The reversal of 340144457 is 754441043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340144457 - 2¹⁴ = 340128073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340144459) 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 7 ways as a sum of consecutive naturals, for example, 53582 + ... + 59592.

It is an arithmetic number, because the mean of its divisors is an integer number (43178184).

Almost surely, 2^340144457 is an apocalyptic number.

It is an amenable number.

340144457 is a deficient number, since it is larger than the sum of its proper divisors (5281015).

340144457 is an equidigital number, since it uses as much as digits as its factorization.

340144457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 340144457 is about 18443.0056389950. The cubic root of 340144457 is about 698.0520379755.

The spelling of 340144457 in words is "three hundred forty million, one hundred forty-four thousand, four hundred fifty-seven".