1020440396 has 12 divisors (see below), whose sum is σ = 1827300552. Its totient is φ = 498354528.

The previous prime is 1020440389. The next prime is 1020440401. The reversal of 1020440396 is 6930440201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2966225 + ... + 2966568.

It is an arithmetic number, because the mean of its divisors is an integer number (152275046).

Almost surely, 2^1020440396 is an apocalyptic number.

It is an amenable number.

1020440396 is a deficient number, since it is larger than the sum of its proper divisors (806860156).

1020440396 is a wasteful number, since it uses less digits than its factorization.

1020440396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932840 (or 5932838 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1020440396 is about 31944.3327681140. The cubic root of 1020440396 is about 1006.7675621184.

Adding to 1020440396 its reverse (6930440201), we get a palindrome (7950880597).

The spelling of 1020440396 in words is "one billion, twenty million, four hundred forty thousand, three hundred ninety-six".