1220598236 has 48 divisors (see below), whose sum is σ = 2513276640. Its totient is φ = 511365120.

The previous prime is 1220598229. The next prime is 1220598251. The reversal of 1220598236 is 6328950221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220598236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530240 + ... + 532536.

It is an arithmetic number, because the mean of its divisors is an integer number (52359930).

Almost surely, 2^1220598236 is an apocalyptic number.

It is an amenable number.

1220598236 is an abundant number, since it is smaller than the sum of its proper divisors (1292678404).

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

1220598236 is a wasteful number, since it uses less digits than its factorization.

1220598236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254 (or 3252 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1220598236 is about 34937.0610670102. The cubic root of 1220598236 is about 1068.7043554210.

The spelling of 1220598236 in words is "one billion, two hundred twenty million, five hundred ninety-eight thousand, two hundred thirty-six".