340495390 has 32 divisors (see below), whose sum is σ = 648779040. Its totient is φ = 128304000.

The previous prime is 340495369. The next prime is 340495403. The reversal of 340495390 is 93594043.

It is a super-2 number, since 2×340495390² = 231874221222504200, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 29440 + ... + 39340.

It is an arithmetic number, because the mean of its divisors is an integer number (20274345).

Almost surely, 2^340495390 is an apocalyptic number.

340495390 is a deficient number, since it is larger than the sum of its proper divisors (308283650).

340495390 is a wasteful number, since it uses less digits than its factorization.

340495390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10108.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 340495390 is about 18452.5171724619. The cubic root of 340495390 is about 698.2920196388.

It can be divided in two parts, 3404953 and 90, that added together give a palindrome (3405043).

The spelling of 340495390 in words is "three hundred forty million, four hundred ninety-five thousand, three hundred ninety".