1205396628 has 24 divisors (see below), whose sum is σ = 2978039232. Its totient is φ = 378163584.

The previous prime is 1205396603. The next prime is 1205396657. The reversal of 1205396628 is 8266935021.

It is a self number, because there is not a number n which added to its sum of digits gives 1205396628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954200 + ... + 2954607.

It is an arithmetic number, because the mean of its divisors is an integer number (124084968).

Almost surely, 2^1205396628 is an apocalyptic number.

It is an amenable number.

1205396628 is an abundant number, since it is smaller than the sum of its proper divisors (1772642604).

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

1205396628 is a wasteful number, since it uses less digits than its factorization.

1205396628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908831 (or 5908829 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1205396628 is about 34718.8223878633. The cubic root of 1205396628 is about 1064.2491796313.

The spelling of 1205396628 in words is "one billion, two hundred five million, three hundred ninety-six thousand, six hundred twenty-eight".