340310642 has 16 divisors (see below), whose sum is σ = 587590080. Its totient is φ = 144797328.

The previous prime is 340310623. The next prime is 340310657. The reversal of 340310642 is 246013043.

It is a happy number.

It is a super-2 number, since 2×340310642² = 231622666116904328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85493 + ... + 89384.

It is an arithmetic number, because the mean of its divisors is an integer number (36724380).

Almost surely, 2^340310642 is an apocalyptic number.

340310642 is a deficient number, since it is larger than the sum of its proper divisors (247279438).

340310642 is a wasteful number, since it uses less digits than its factorization.

340310642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175025.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 340310642 is about 18447.5104553433. The cubic root of 340310642 is about 698.1657023204.

Adding to 340310642 its reverse (246013043), we get a palindrome (586323685).

The spelling of 340310642 in words is "three hundred forty million, three hundred ten thousand, six hundred forty-two".