530631402 has 64 divisors (see below), whose sum is σ = 1263820800. Its totient is φ = 145333440.

The previous prime is 530631397. The next prime is 530631403. The reversal of 530631402 is 204136035.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (530631403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140049 + ... + 143787.

It is an arithmetic number, because the mean of its divisors is an integer number (19747200).

Almost surely, 2^530631402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530631402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631910400).

530631402 is an abundant number, since it is smaller than the sum of its proper divisors (733189398).

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

530631402 is a wasteful number, since it uses less digits than its factorization.

530631402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 530631402 is about 23035.4379598045. The cubic root of 530631402 is about 809.5884725588.

Adding to 530631402 its reverse (204136035), we get a palindrome (734767437).

The spelling of 530631402 in words is "five hundred thirty million, six hundred thirty-one thousand, four hundred two".