340486690 has 8 divisors (see below), whose sum is σ = 612876060. Its totient is φ = 136194672.

The previous prime is 340486661. The next prime is 340486703. The reversal of 340486690 is 96684043.

It can be written as a sum of positive squares in 2 ways, for example, as 307756849 + 32729841 = 17543^2 + 5721^2 .

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

It is a super-2 number, since 2×340486690² = 231862372134312200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17024325 + ... + 17024344.

Almost surely, 2^340486690 is an apocalyptic number.

340486690 is a deficient number, since it is larger than the sum of its proper divisors (272389370).

340486690 is a wasteful number, since it uses less digits than its factorization.

340486690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34048676.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 340486690 is about 18452.2814307608. The cubic root of 340486690 is about 698.2860722334.

The spelling of 340486690 in words is "three hundred forty million, four hundred eighty-six thousand, six hundred ninety".