340920993 has 8 divisors (see below), whose sum is σ = 519498688. Its totient is φ = 194811984.

The previous prime is 340920989. The next prime is 340921003. The reversal of 340920993 is 399029043.

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

It is not a de Polignac number, because 340920993 - 2² = 340920989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340920793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8117146 + ... + 8117187.

It is an arithmetic number, because the mean of its divisors is an integer number (64937336).

Almost surely, 2^340920993 is an apocalyptic number.

It is an amenable number.

340920993 is a deficient number, since it is larger than the sum of its proper divisors (178577695).

340920993 is a wasteful number, since it uses less digits than its factorization.

340920993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16234343.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 340920993 is about 18464.0459542322. The cubic root of 340920993 is about 698.5828424090.

The spelling of 340920993 in words is "three hundred forty million, nine hundred twenty thousand, nine hundred ninety-three".