340620516 has 18 divisors (see below), whose sum is σ = 861013062. Its totient is φ = 113540160.

The previous prime is 340620509. The next prime is 340620521. The reversal of 340620516 is 615026043.

340620516 is a `hidden beast` number, since 34 + 0 + 620 + 5 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 274034916 + 66585600 = 16554^2 + 8160^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 340620516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4730805 + ... + 4730876.

It is an arithmetic number, because the mean of its divisors is an integer number (47834059).

Almost surely, 2^340620516 is an apocalyptic number.

340620516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

340620516 is an abundant number, since it is smaller than the sum of its proper divisors (520392546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340620516 is a wasteful number, since it uses less digits than its factorization.

340620516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461691 (or 9461686 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 340620516 is about 18455.9073469716. The cubic root of 340620516 is about 698.3775457958.

Adding to 340620516 its reverse (615026043), we get a palindrome (955646559).

The spelling of 340620516 in words is "three hundred forty million, six hundred twenty thousand, five hundred sixteen".