1220597238 has 32 divisors (see below), whose sum is σ = 2849301504. Its totient is φ = 341321472.

The previous prime is 1220597227. The next prime is 1220597239. The reversal of 1220597238 is 8327950221.

It is a junction number, because it is equal to n+sod(n) for n = 1220597196 and 1220597205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220597239) 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, 307195 + ... + 311142.

It is an arithmetic number, because the mean of its divisors is an integer number (89040672).

Almost surely, 2^1220597238 is an apocalyptic number.

1220597238 is an abundant number, since it is smaller than the sum of its proper divisors (1628704266).

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

1220597238 is a wasteful number, since it uses less digits than its factorization.

1220597238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618396.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1220597238 is about 34937.0467841803. The cubic root of 1220597238 is about 1068.7040641520.

The spelling of 1220597238 in words is "one billion, two hundred twenty million, five hundred ninety-seven thousand, two hundred thirty-eight".