1200616340 has 48 divisors (see below), whose sum is σ = 3143435904. Its totient is φ = 374217600.

The previous prime is 1200616321. The next prime is 1200616343. The reversal of 1200616340 is 436160021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200616343) 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, 388271 + ... + 391350.

It is an arithmetic number, because the mean of its divisors is an integer number (65488248).

Almost surely, 2^1200616340 is an apocalyptic number.

1200616340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200616340 is an abundant number, since it is smaller than the sum of its proper divisors (1942819564).

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

1200616340 is a wasteful number, since it uses less digits than its factorization.

1200616340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779648 (or 779646 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1200616340 is about 34649.9111109971. The cubic root of 1200616340 is about 1062.8404710942.

Adding to 1200616340 its reverse (436160021), we get a palindrome (1636776361).

The spelling of 1200616340 in words is "one billion, two hundred million, six hundred sixteen thousand, three hundred forty".