1220325939 has 96 divisors (see below), whose sum is σ = 2267232000. Its totient is φ = 644692608.

The previous prime is 1220325937. The next prime is 1220325961. The reversal of 1220325939 is 9395230221.

1220325939 is a `hidden beast` number, since 12 + 20 + 32 + 593 + 9 = 666.

It is not a de Polignac number, because 1220325939 - 2¹ = 1220325937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220325937) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1080327 + ... + 1081455.

It is an arithmetic number, because the mean of its divisors is an integer number (23617000).

Almost surely, 2^1220325939 is an apocalyptic number.

1220325939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1220325939 is a deficient number, since it is larger than the sum of its proper divisors (1046906061).

1220325939 is a wasteful number, since it uses less digits than its factorization.

1220325939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1201 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1220325939 is about 34933.1638847672. The cubic root of 1220325939 is about 1068.6248789196.

The spelling of 1220325939 in words is "one billion, two hundred twenty million, three hundred twenty-five thousand, nine hundred thirty-nine".