340630407 has 16 divisors (see below), whose sum is σ = 543456480. Its totient is φ = 209618496.

The previous prime is 340630397. The next prime is 340630429. The reversal of 340630407 is 704036043.

It is a de Polignac number, because none of the positive numbers 2^k-340630407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340630447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484878 + ... + 485579.

It is an arithmetic number, because the mean of its divisors is an integer number (33966030).

Almost surely, 2^340630407 is an apocalyptic number.

340630407 is a deficient number, since it is larger than the sum of its proper divisors (202826073).

340630407 is a wasteful number, since it uses less digits than its factorization.

340630407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970479 (or 970473 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 340630407 is about 18456.1753080101. The cubic root of 340630407 is about 698.3843056014.

The spelling of 340630407 in words is "three hundred forty million, six hundred thirty thousand, four hundred seven".