1220398596 has 48 divisors (see below), whose sum is σ = 3167348800. Its totient is φ = 406368576.

The previous prime is 1220398573. The next prime is 1220398643. The reversal of 1220398596 is 6958930221.

1220398596 is a `hidden beast` number, since 1 + 2 + 20 + 39 + 8 + 596 = 666.

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, 106095 + ... + 117033.

Almost surely, 2^1220398596 is an apocalyptic number.

It is an amenable number.

1220398596 is an abundant number, since it is smaller than the sum of its proper divisors (1946950204).

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

1220398596 is a wasteful number, since it uses less digits than its factorization.

1220398596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11985 (or 11977 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1220398596 is about 34934.2038123098. The cubic root of 1220398596 is about 1068.6460867883.

The spelling of 1220398596 in words is "one billion, two hundred twenty million, three hundred ninety-eight thousand, five hundred ninety-six".