1352028820 has 12 divisors (see below), whose sum is σ = 2839260564. Its totient is φ = 540811520.

The previous prime is 1352028817. The next prime is 1352028851. The reversal of 1352028820 is 288202531.

It can be written as a sum of positive squares in 2 ways, for example, as 349166596 + 1002862224 = 18686^2 + 31668^2 .

It is a super-2 number, since 2×1352028820² = 3655963860221184800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33800701 + ... + 33800740.

It is an arithmetic number, because the mean of its divisors is an integer number (236605047).

Almost surely, 2^1352028820 is an apocalyptic number.

1352028820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352028820 is an abundant number, since it is smaller than the sum of its proper divisors (1487231744).

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

1352028820 is a wasteful number, since it uses less digits than its factorization.

1352028820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67601450 (or 67601448 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1352028820 is about 36769.9445199473. The cubic root of 1352028820 is about 1105.7628196469.

The spelling of 1352028820 in words is "one billion, three hundred fifty-two million, twenty-eight thousand, eight hundred twenty".