1352521320 has 64 divisors (see below), whose sum is σ = 4188464640. Its totient is φ = 349036800.

The previous prime is 1352521319. The next prime is 1352521333. The reversal of 1352521320 is 231252531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178071 + ... + 185510.

It is an arithmetic number, because the mean of its divisors is an integer number (65444760).

Almost surely, 2^1352521320 is an apocalyptic number.

1352521320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352521320 is an abundant number, since it is smaller than the sum of its proper divisors (2835943320).

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

1352521320 is a wasteful number, since it uses less digits than its factorization.

1352521320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363626 (or 363622 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1352521320 is about 36776.6409559111. The cubic root of 1352521320 is about 1105.8970677903.

Adding to 1352521320 its reverse (231252531), we get a palindrome (1583773851).

The spelling of 1352521320 in words is "one billion, three hundred fifty-two million, five hundred twenty-one thousand, three hundred twenty".