340402233 has 16 divisors (see below), whose sum is σ = 488871680. Its totient is φ = 209989584.

The previous prime is 340402229. The next prime is 340402259. The reversal of 340402233 is 332204043.

It is not a de Polignac number, because 340402233 - 2² = 340402229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340402273) 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, 66991 + ... + 71892.

It is an arithmetic number, because the mean of its divisors is an integer number (30554480).

Almost surely, 2^340402233 is an apocalyptic number.

It is an amenable number.

340402233 is a deficient number, since it is larger than the sum of its proper divisors (148469447).

340402233 is a wasteful number, since it uses less digits than its factorization.

340402233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138948.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 340402233 is about 18449.9927642262. The cubic root of 340402233 is about 698.2283313335.

Adding to 340402233 its reverse (332204043), we get a palindrome (672606276).

The spelling of 340402233 in words is "three hundred forty million, four hundred two thousand, two hundred thirty-three".