1205830864 has 20 divisors (see below), whose sum is σ = 2670054304. Its totient is φ = 516784608.

The previous prime is 1205830861. The next prime is 1205830883. The reversal of 1205830864 is 4680385021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205830861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5383062 + ... + 5383285.

Almost surely, 2^1205830864 is an apocalyptic number.

1205830864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1205830864 is an abundant number, since it is smaller than the sum of its proper divisors (1464223440).

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

1205830864 is a wasteful number, since it uses less digits than its factorization.

1205830864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766362 (or 10766356 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1205830864 is about 34725.0754354832. The cubic root of 1205830864 is about 1064.3769604833.

The spelling of 1205830864 in words is "one billion, two hundred five million, eight hundred thirty thousand, eight hundred sixty-four".