1029443020 has 24 divisors (see below), whose sum is σ = 2162437200. Its totient is φ = 411661632.

The previous prime is 1029442991. The next prime is 1029443059. The reversal of 1029443020 is 203449201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123546 + ... + 131614.

It is an arithmetic number, because the mean of its divisors is an integer number (90101550).

Almost surely, 2^1029443020 is an apocalyptic number.

1029443020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1029443020 is an abundant number, since it is smaller than the sum of its proper divisors (1132994180).

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

1029443020 is a wasteful number, since it uses less digits than its factorization.

1029443020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14457 (or 14455 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1029443020 is about 32084.9344708697. The cubic root of 1029443020 is about 1009.7195640067.

The spelling of 1029443020 in words is "one billion, twenty-nine million, four hundred forty-three thousand, twenty".