531233400 has 48 divisors (see below), whose sum is σ = 1646825400. Its totient is φ = 141662080.

The previous prime is 531233389. The next prime is 531233429. The reversal of 531233400 is 4332135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442095 + ... + 443294.

Almost surely, 2^531233400 is an apocalyptic number.

531233400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

531233400 is an abundant number, since it is smaller than the sum of its proper divisors (1115592000).

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

531233400 is a wasteful number, since it uses less digits than its factorization.

531233400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885408 (or 885399 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 531233400 is about 23048.5010358591. The cubic root of 531233400 is about 809.8945145365.

Adding to 531233400 its reverse (4332135), we get a palindrome (535565535).

The spelling of 531233400 in words is "five hundred thirty-one million, two hundred thirty-three thousand, four hundred".