340223240 has 32 divisors (see below), whose sum is σ = 874860480. Its totient is φ = 116647872.

The previous prime is 340223231. The next prime is 340223263. The reversal of 340223240 is 42322043.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607262 + ... + 607821.

It is an arithmetic number, because the mean of its divisors is an integer number (27339390).

Almost surely, 2^340223240 is an apocalyptic number.

It is an amenable number.

340223240 is an abundant number, since it is smaller than the sum of its proper divisors (534637240).

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

340223240 is a wasteful number, since it uses less digits than its factorization.

340223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215101 (or 1215097 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 340223240 is about 18445.1413656822. The cubic root of 340223240 is about 698.1059272248.

Adding to 340223240 its reverse (42322043), we get a palindrome (382545283).

The spelling of 340223240 in words is "three hundred forty million, two hundred twenty-three thousand, two hundred forty".