1331401452 has 48 divisors (see below), whose sum is σ = 3140616192. Its totient is φ = 438963840.

The previous prime is 1331401417. The next prime is 1331401453. The reversal of 1331401452 is 2541041331.

It is a happy number.

It is a super-3 number, since 3×1331401452³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331401453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582552 + ... + 584832.

It is an arithmetic number, because the mean of its divisors is an integer number (65429504).

Almost surely, 2^1331401452 is an apocalyptic number.

1331401452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331401452 is an abundant number, since it is smaller than the sum of its proper divisors (1809214740).

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

1331401452 is a wasteful number, since it uses less digits than its factorization.

1331401452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1331401452 is about 36488.3742032993. The cubic root of 1331401452 is about 1100.1105817204.

Adding to 1331401452 its reverse (2541041331), we get a palindrome (3872442783).

The spelling of 1331401452 in words is "one billion, three hundred thirty-one million, four hundred one thousand, four hundred fifty-two".