1352711220 has 96 divisors (see below), whose sum is σ = 4353931008. Its totient is φ = 307387392.

The previous prime is 1352711219. The next prime is 1352711221. The reversal of 1352711220 is 221172531.

It is an interprime number because it is at equal distance from previous prime (1352711219) and next prime (1352711221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352711221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63352 + ... + 81968.

It is an arithmetic number, because the mean of its divisors is an integer number (45353448).

Almost surely, 2^1352711220 is an apocalyptic number.

1352711220 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 1352711220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176965504).

1352711220 is an abundant number, since it is smaller than the sum of its proper divisors (3001219788).

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

1352711220 is a wasteful number, since it uses less digits than its factorization.

1352711220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18809 (or 18807 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1352711220 is about 36779.2226671527. Note that the first 3 decimals coincide. The cubic root of 1352711220 is about 1105.9488229881.

Adding to 1352711220 its reverse (221172531), we get a palindrome (1573883751).

The spelling of 1352711220 in words is "one billion, three hundred fifty-two million, seven hundred eleven thousand, two hundred twenty".