1033320420 has 72 divisors (see below), whose sum is σ = 3419357760. Its totient is φ = 250501440.

The previous prime is 1033320413. The next prime is 1033320433. The reversal of 1033320420 is 240233301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1033320393 and 1033320402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258960 + ... + 262919.

It is an arithmetic number, because the mean of its divisors is an integer number (47491080).

Almost surely, 2^1033320420 is an apocalyptic number.

1033320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1033320420 is an abundant number, since it is smaller than the sum of its proper divisors (2386037340).

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

1033320420 is a wasteful number, since it uses less digits than its factorization.

1033320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521905 (or 521900 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1033320420 is about 32145.3016784724. The cubic root of 1033320420 is about 1010.9856795748.

Adding to 1033320420 its reverse (240233301), we get a palindrome (1273553721).

The spelling of 1033320420 in words is "one billion, thirty-three million, three hundred twenty thousand, four hundred twenty".