1020302440 has 32 divisors (see below), whose sum is σ = 2298293280. Its totient is φ = 407656512.

The previous prime is 1020302429. The next prime is 1020302449. The reversal of 1020302440 is 442030201.

It is not an unprimeable number, because it can be changed into a prime (1020302449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22219 + ... + 50341.

It is an arithmetic number, because the mean of its divisors is an integer number (71821665).

Almost surely, 2^1020302440 is an apocalyptic number.

1020302440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020302440 is an abundant number, since it is smaller than the sum of its proper divisors (1277990840).

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

1020302440 is a wasteful number, since it uses less digits than its factorization.

1020302440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29041 (or 29037 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1020302440 is about 31942.1733762748. The cubic root of 1020302440 is about 1006.7221908958.

Adding to 1020302440 its reverse (442030201), we get a palindrome (1462332641).

The spelling of 1020302440 in words is "one billion, twenty million, three hundred two thousand, four hundred forty".