340612644 has 12 divisors (see below), whose sum is σ = 794762864. Its totient is φ = 113537544.

The previous prime is 340612633. The next prime is 340612667. The reversal of 340612644 is 446216043.

It is a tau number, because it is divible by the number of its divisors (12).

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, 14192182 + ... + 14192205.

Almost surely, 2^340612644 is an apocalyptic number.

It is an amenable number.

340612644 is an abundant number, since it is smaller than the sum of its proper divisors (454150220).

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

340612644 is a wasteful number, since it uses less digits than its factorization.

340612644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28384394 (or 28384392 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 340612644 is about 18455.6940806896. The cubic root of 340612644 is about 698.3721657417.

Adding to 340612644 its reverse (446216043), we get a palindrome (786828687).

The spelling of 340612644 in words is "three hundred forty million, six hundred twelve thousand, six hundred forty-four".