4920385 has 8 divisors (see below), whose sum is σ = 5916456. Its totient is φ = 3928320.

The previous prime is 4920379. The next prime is 4920389. The reversal of 4920385 is 5830294.

4920385 = 1568² + 1569².

It can be written as a sum of positive squares in 4 ways, for example, as 97969 + 4822416 = 313^2 + 2196^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4920385 - 2⁷ = 4920257 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 9⁷ + 2¹⁷ + 0 + 3⁷ + 8 + 5⁵ .

It is a Duffinian number.

4920385 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4920389) 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, 3847 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (739557).

Almost surely, 2^4920385 is an apocalyptic number.

4920385 is the 1569-th centered square number.

It is an amenable number.

4920385 is a deficient number, since it is larger than the sum of its proper divisors (996071).

4920385 is a wasteful number, since it uses less digits than its factorization.

4920385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4920385 is about 2218.1940852865. The cubic root of 4920385 is about 170.0851361340.

Subtracting 4920385 from its reverse (5830294), we obtain a palindrome (909909).

The spelling of 4920385 in words is "four million, nine hundred twenty thousand, three hundred eighty-five".