1332521420 has 24 divisors (see below), whose sum is σ = 2799175344. Its totient is φ = 532840896.

The previous prime is 1332521417. The next prime is 1332521429. The reversal of 1332521420 is 241252331.

It is a super-2 number, since 2×1332521420² = 3551226669517632800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1332521429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69614 + ... + 86666.

It is an arithmetic number, because the mean of its divisors is an integer number (116632306).

Almost surely, 2^1332521420 is an apocalyptic number.

1332521420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332521420 is an abundant number, since it is smaller than the sum of its proper divisors (1466653924).

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

1332521420 is a wasteful number, since it uses less digits than its factorization.

1332521420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20969 (or 20967 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1332521420 is about 36503.7178928394. The cubic root of 1332521420 is about 1100.4189643729.

Adding to 1332521420 its reverse (241252331), we get a palindrome (1573773751).

The spelling of 1332521420 in words is "one billion, three hundred thirty-two million, five hundred twenty-one thousand, four hundred twenty".