1373701220 has 96 divisors (see below), whose sum is σ = 3165136128. Its totient is φ = 499226112.

The previous prime is 1373701207. The next prime is 1373701253. The reversal of 1373701220 is 221073731.

It is a self number, because there is not a number n which added to its sum of digits gives 1373701220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 730922 + ... + 732798.

It is an arithmetic number, because the mean of its divisors is an integer number (32970168).

Almost surely, 2^1373701220 is an apocalyptic number.

1373701220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373701220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582568064).

1373701220 is an abundant number, since it is smaller than the sum of its proper divisors (1791434908).

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

1373701220 is a wasteful number, since it uses less digits than its factorization.

1373701220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 1373701220 is about 37063.4755520850. The cubic root of 1373701220 is about 1111.6398185225.

Adding to 1373701220 its reverse (221073731), we get a palindrome (1594774951).

The spelling of 1373701220 in words is "one billion, three hundred seventy-three million, seven hundred one thousand, two hundred twenty".