340909623 has 12 divisors (see below), whose sum is σ = 492586848. Its totient is φ = 227198400.

The previous prime is 340909607. The next prime is 340909637. The reversal of 340909623 is 326909043.

It is a happy number.

It is not a de Polignac number, because 340909623 - 2⁴ = 340909607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340909693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44098 + ... + 51248.

It is an arithmetic number, because the mean of its divisors is an integer number (41048904).

Almost surely, 2^340909623 is an apocalyptic number.

340909623 is a deficient number, since it is larger than the sum of its proper divisors (151677225).

340909623 is a wasteful number, since it uses less digits than its factorization.

340909623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12454 (or 12451 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 340909623 is about 18463.7380559842. The cubic root of 340909623 is about 698.5750762155.

The spelling of 340909623 in words is "three hundred forty million, nine hundred nine thousand, six hundred twenty-three".