1234331340 has 384 divisors, whose sum is σ = 4223729664. Its totient is φ = 266112000.

The previous prime is 1234331327. The next prime is 1234331381. The reversal of 1234331340 is 431334321.

It is a self number, because there is not a number n which added to its sum of digits gives 1234331340.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20234910 + ... + 20234970.

It is an arithmetic number, because the mean of its divisors is an integer number (10999296).

Almost surely, 2^1234331340 is an apocalyptic number.

1234331340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234331340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111864832).

1234331340 is an abundant number, since it is smaller than the sum of its proper divisors (2989398324).

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

1234331340 is a wasteful number, since it uses less digits than its factorization.

1234331340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1234331340 is about 35133.0519596576. The cubic root of 1234331340 is about 1072.6974593100.

Adding to 1234331340 its reverse (431334321), we get a palindrome (1665665661).

The spelling of 1234331340 in words is "one billion, two hundred thirty-four million, three hundred thirty-one thousand, three hundred forty".