1004920 has 64 divisors (see below), whose sum is σ = 2681280. Its totient is φ = 331776.

The previous prime is 1004917. The next prime is 1004963. The reversal of 1004920 is 294001.

1004920 = T₇₄ + T₇₅ + ... + T₁₈₅.

It is a junction number, because it is equal to n+sod(n) for n = 1004894 and 1004903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10312 + ... + 10408.

It is an arithmetic number, because the mean of its divisors is an integer number (41895).

2^1004920 is an apocalyptic number.

1004920 is a gapful number since it is divisible by the number (10) 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 1004920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340640).

1004920 is an abundant number, since it is smaller than the sum of its proper divisors (1676360).

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

1004920 is a wasteful number, since it uses less digits than its factorization.

1004920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1004920 is about 1002.4569816207. The cubic root of 1004920 is about 100.1637317728.

Adding to 1004920 its reverse (294001), we get a palindrome (1298921).

The spelling of 1004920 in words is "one million, four thousand, nine hundred twenty".