1372313220 has 24 divisors (see below), whose sum is σ = 3842477184. Its totient is φ = 365950176.

The previous prime is 1372313213. The next prime is 1372313227. The reversal of 1372313220 is 223132731.

It is an interprime number because it is at equal distance from previous prime (1372313213) and next prime (1372313227).

It is not an unprimeable number, because it can be changed into a prime (1372313227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11435884 + ... + 11436003.

It is an arithmetic number, because the mean of its divisors is an integer number (160103216).

Almost surely, 2^1372313220 is an apocalyptic number.

1372313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372313220 is an abundant number, since it is smaller than the sum of its proper divisors (2470163964).

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

1372313220 is a wasteful number, since it uses less digits than its factorization.

1372313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22871899 (or 22871897 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1372313220 is about 37044.7461862003. The cubic root of 1372313220 is about 1111.2652887461.

Adding to 1372313220 its reverse (223132731), we get a palindrome (1595445951).

The spelling of 1372313220 in words is "one billion, three hundred seventy-two million, three hundred thirteen thousand, two hundred twenty".