4921530 has 16 divisors (see below), whose sum is σ = 11811744. Its totient is φ = 1312400.

The previous prime is 4921523. The next prime is 4921537. The reversal of 4921530 is 351294.

4921530 = T₁₃₈ + T₁₃₉ + ... + T₃₁₇.

It is an interprime number because it is at equal distance from previous prime (4921523) and next prime (4921537).

It is a self number, because there is not a number n which added to its sum of digits gives 4921530.

It is not an unprimeable number, because it can be changed into a prime (4921537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81996 + ... + 82055.

It is an arithmetic number, because the mean of its divisors is an integer number (738234).

Almost surely, 2^4921530 is an apocalyptic number.

4921530 is an abundant number, since it is smaller than the sum of its proper divisors (6890214).

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

4921530 is a wasteful number, since it uses less digits than its factorization.

4921530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164061.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 4921530 is about 2218.4521631083. The cubic root of 4921530 is about 170.0983283522.

The spelling of 4921530 in words is "four million, nine hundred twenty-one thousand, five hundred thirty".