531343400 has 48 divisors (see below), whose sum is σ = 1411859040. Its totient is φ = 182174400.

The previous prime is 531343363. The next prime is 531343409. The reversal of 531343400 is 4343135.

It is not an unprimeable number, because it can be changed into a prime (531343409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188366 + ... + 191165.

It is an arithmetic number, because the mean of its divisors is an integer number (29413730).

Almost surely, 2^531343400 is an apocalyptic number.

531343400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

531343400 is an abundant number, since it is smaller than the sum of its proper divisors (880515640).

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

531343400 is a wasteful number, since it uses less digits than its factorization.

531343400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379554 (or 379545 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 531343400 is about 23050.8871846617. The cubic root of 531343400 is about 809.9504110271.

Adding to 531343400 its reverse (4343135), we get a palindrome (535686535).

The spelling of 531343400 in words is "five hundred thirty-one million, three hundred forty-three thousand, four hundred".