1023920628 has 48 divisors (see below), whose sum is σ = 2431598400. Its totient is φ = 335296000.

The previous prime is 1023920627. The next prime is 1023920629. The reversal of 1023920628 is 8260293201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1023920627) and next prime (1023920629).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023920627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 155548 + ... + 161996.

It is an arithmetic number, because the mean of its divisors is an integer number (50658300).

Almost surely, 2^1023920628 is an apocalyptic number.

It is an amenable number.

1023920628 is an abundant number, since it is smaller than the sum of its proper divisors (1407677772).

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

1023920628 is a wasteful number, since it uses less digits than its factorization.

1023920628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688 (or 6686 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1023920628 is about 31998.7597884668. The cubic root of 1023920628 is about 1007.9107969374.

The spelling of 1023920628 in words is "one billion, twenty-three million, nine hundred twenty thousand, six hundred twenty-eight".