531042000 has 160 divisors (see below), whose sum is σ = 1738948224. Its totient is φ = 139392000.

The previous prime is 531041993. The next prime is 531042013. The reversal of 531042000 is 240135.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401340 + ... + 402660.

Almost surely, 2^531042000 is an apocalyptic number.

531042000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531042000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869474112).

531042000 is an abundant number, since it is smaller than the sum of its proper divisors (1207906224).

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

531042000 is a wasteful number, since it uses less digits than its factorization.

531042000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 531042000 is about 23044.3485479629. The cubic root of 531042000 is about 809.7972362462.

Adding to 531042000 its reverse (240135), we get a palindrome (531282135).

The spelling of 531042000 in words is "five hundred thirty-one million, forty-two thousand".