1020322040 has 64 divisors (see below), whose sum is σ = 2439331200. Its totient is φ = 383004288.

The previous prime is 1020322007. The next prime is 1020322049. The reversal of 1020322040 is 402230201.

1020322040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020322049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75047 + ... + 87593.

It is an arithmetic number, because the mean of its divisors is an integer number (38114550).

Almost surely, 2^1020322040 is an apocalyptic number.

1020322040 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 1020322040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219665600).

1020322040 is an abundant number, since it is smaller than the sum of its proper divisors (1419009160).

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

1020322040 is a wasteful number, since it uses less digits than its factorization.

1020322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12684 (or 12680 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1020322040 is about 31942.4801792222. The cubic root of 1020322040 is about 1006.7286372290.

Adding to 1020322040 its reverse (402230201), we get a palindrome (1422552241).

The spelling of 1020322040 in words is "one billion, twenty million, three hundred twenty-two thousand, forty".