531342020 has 24 divisors (see below), whose sum is σ = 1217256768. Its totient is φ = 193215200.

The previous prime is 531341999. The next prime is 531342037. The reversal of 531342020 is 20243135.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 531341983 and 531342001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207376 + ... + 1207815.

It is an arithmetic number, because the mean of its divisors is an integer number (50719032).

Almost surely, 2^531342020 is an apocalyptic number.

It is an amenable number.

531342020 is an abundant number, since it is smaller than the sum of its proper divisors (685914748).

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

531342020 is a wasteful number, since it uses less digits than its factorization.

531342020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415211 (or 2415209 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 531342020 is about 23050.8572508703. The cubic root of 531342020 is about 809.9497098280.

Adding to 531342020 its reverse (20243135), we get a palindrome (551585155).

The spelling of 531342020 in words is "five hundred thirty-one million, three hundred forty-two thousand, twenty".