1353428820 has 144 divisors (see below), whose sum is σ = 4366344528. Its totient is φ = 338165760.

The previous prime is 1353428801. The next prime is 1353428821. The reversal of 1353428820 is 288243531.

1353428820 is a `hidden beast` number, since 1 + 353 + 4 + 288 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 347524164 + 1005904656 = 18642^2 + 31716^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353428821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 785560 + ... + 787280.

It is an arithmetic number, because the mean of its divisors is an integer number (30321837).

Almost surely, 2^1353428820 is an apocalyptic number.

1353428820 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 1353428820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183172264).

1353428820 is an abundant number, since it is smaller than the sum of its proper divisors (3012915708).

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

1353428820 is a wasteful number, since it uses less digits than its factorization.

1353428820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1353428820 is about 36788.9768816693. The cubic root of 1353428820 is about 1106.1443534082.

The spelling of 1353428820 in words is "one billion, three hundred fifty-three million, four hundred twenty-eight thousand, eight hundred twenty".