234440340 has 24 divisors (see below), whose sum is σ = 656433120. Its totient is φ = 62517408.

The previous prime is 234440333. The next prime is 234440347. The reversal of 234440340 is 43044432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (234440333) and next prime (234440347).

It is a self number, because there is not a number n which added to its sum of digits gives 234440340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234440347) 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, 1953610 + ... + 1953729.

It is an arithmetic number, because the mean of its divisors is an integer number (27351380).

Almost surely, 2^234440340 is an apocalyptic number.

234440340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234440340 is an abundant number, since it is smaller than the sum of its proper divisors (421992780).

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

234440340 is a wasteful number, since it uses less digits than its factorization.

234440340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907351 (or 3907349 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 234440340 is about 15311.4447391486. Note that the first 3 decimals coincide. The cubic root of 234440340 is about 616.6103082980.

Adding to 234440340 its reverse (43044432), we get a palindrome (277484772).

The spelling of 234440340 in words is "two hundred thirty-four million, four hundred forty thousand, three hundred forty".