340432443 has 32 divisors (see below), whose sum is σ = 571737600. Its totient is φ = 198466848.

The previous prime is 340432441. The next prime is 340432447. The reversal of 340432443 is 344234043.

It is not a de Polignac number, because 340432443 - 2¹ = 340432441 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (340432441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18855 + ... + 32192.

It is an arithmetic number, because the mean of its divisors is an integer number (17866800).

Almost surely, 2^340432443 is an apocalyptic number.

340432443 is a deficient number, since it is larger than the sum of its proper divisors (231305157).

340432443 is a wasteful number, since it uses less digits than its factorization.

340432443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51088 (or 51082 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 340432443 is about 18450.8114455706. The cubic root of 340432443 is about 698.2489861666.

Adding to 340432443 its reverse (344234043), we get a palindrome (684666486).

The spelling of 340432443 in words is "three hundred forty million, four hundred thirty-two thousand, four hundred forty-three".