4921800 has 96 divisors (see below), whose sum is σ = 16457280. Its totient is φ = 1209600.

The previous prime is 4921783. The next prime is 4921811. The reversal of 4921800 is 81294.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7485 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (171430).

Almost surely, 2^4921800 is an apocalyptic number.

4921800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4921800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8228640).

4921800 is an abundant number, since it is smaller than the sum of its proper divisors (11535480).

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

4921800 is a wasteful number, since it uses less digits than its factorization.

4921800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 4921800 is about 2218.5130155129. The cubic root of 4921800 is about 170.1014388827.

The spelling of 4921800 in words is "four million, nine hundred twenty-one thousand, eight hundred".