4621530 has 32 divisors (see below), whose sum is σ = 11188224. Its totient is φ = 1221696.

The previous prime is 4621517. The next prime is 4621531. The reversal of 4621530 is 351264.

It is a happy number.

It is a super-3 number, since 3×4621530³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4621497 and 4621506.

It is not an unprimeable number, because it can be changed into a prime (4621531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3204 + ... + 4416.

It is an arithmetic number, because the mean of its divisors is an integer number (349632).

Almost surely, 2^4621530 is an apocalyptic number.

4621530 is an abundant number, since it is smaller than the sum of its proper divisors (6566694).

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

4621530 is a wasteful number, since it uses less digits than its factorization.

4621530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 4621530 is about 2149.7744067692. The cubic root of 4621530 is about 166.5694143741.

Adding to 4621530 its reverse (351264), we get a palindrome (4972794).

It can be divided in two parts, 4621 and 530, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 4621530 in words is "four million, six hundred twenty-one thousand, five hundred thirty".