1345250220 has 48 divisors (see below), whose sum is σ = 3930474240. Its totient is φ = 343135936.

The previous prime is 1345250189. The next prime is 1345250279. The reversal of 1345250220 is 220525431.

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, 486030 + ... + 488789.

It is an arithmetic number, because the mean of its divisors is an integer number (81884880).

Almost surely, 2^1345250220 is an apocalyptic number.

1345250220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345250220 is an abundant number, since it is smaller than the sum of its proper divisors (2585224020).

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

1345250220 is a wasteful number, since it uses less digits than its factorization.

1345250220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974854 (or 974852 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1345250220 is about 36677.6528692881. The cubic root of 1345250220 is about 1103.9117532120.

Adding to 1345250220 its reverse (220525431), we get a palindrome (1565775651).

The spelling of 1345250220 in words is "one billion, three hundred forty-five million, two hundred fifty thousand, two hundred twenty".