530646 has 16 divisors (see below), whose sum is σ = 1080000. Its totient is φ = 173768.

The previous prime is 530641. The next prime is 530653. The reversal of 530646 is 646035.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (67500).

2⁵³⁰⁶⁴⁶ is an apocalyptic number.

530646 is an abundant number, since it is smaller than the sum of its proper divisors (549354).

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

530646 is a wasteful number, since it uses less digits than its factorization.

530646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563.

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

The square root of 530646 is about 728.4545284367. The cubic root of 530646 is about 80.9595896585.

It can be divided in two parts, 530 and 646, that added together give a triangular number (1176 = T₄₈).

The spelling of 530646 in words is "five hundred thirty thousand, six hundred forty-six".