340420754 has 8 divisors (see below), whose sum is σ = 517626300. Its totient is φ = 167878656.

The previous prime is 340420753. The next prime is 340420781. The reversal of 340420754 is 457024043.

It can be written as a sum of positive squares in 2 ways, for example, as 314175625 + 26245129 = 17725^2 + 5123^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340420753) 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, 1165679 + ... + 1165970.

Almost surely, 2^340420754 is an apocalyptic number.

340420754 is a deficient number, since it is larger than the sum of its proper divisors (177205546).

340420754 is a wasteful number, since it uses less digits than its factorization.

340420754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331724.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 340420754 is about 18450.4946817152. The cubic root of 340420754 is about 698.2409944431.

Adding to 340420754 its reverse (457024043), we get a palindrome (797444797).

The spelling of 340420754 in words is "three hundred forty million, four hundred twenty thousand, seven hundred fifty-four".