10450820 has 12 divisors (see below), whose sum is σ = 21946764. Its totient is φ = 4180320.

The previous prime is 10450819. The next prime is 10450829. The reversal of 10450820 is 2805401.

It can be written as a sum of positive squares in 2 ways, for example, as 3041536 + 7409284 = 1744^2 + 2722^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 522541 = 10450820 / (1 + 0 + 4 + 5 + 0 + 8 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 10450792 and 10450801.

It is not an unprimeable number, because it can be changed into a prime (10450829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261251 + ... + 261290.

It is an arithmetic number, because the mean of its divisors is an integer number (1828897).

Almost surely, 2^10450820 is an apocalyptic number.

10450820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10450820 is an abundant number, since it is smaller than the sum of its proper divisors (11495944).

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

10450820 is a wasteful number, since it uses less digits than its factorization.

10450820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522550 (or 522548 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 10450820 is about 3232.7728036470. The cubic root of 10450820 is about 218.6335412757.

The spelling of 10450820 in words is "ten million, four hundred fifty thousand, eight hundred twenty".