1029428750 has 80 divisors (see below), whose sum is σ = 2251154400. Its totient is φ = 352947000.

The previous prime is 1029428737. The next prime is 1029428753. The reversal of 1029428750 is 578249201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029428753) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 147061247 + ... + 147061253.

It is an arithmetic number, because the mean of its divisors is an integer number (28139430).

Almost surely, 2^1029428750 is an apocalyptic number.

1029428750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1029428750 is an abundant number, since it is smaller than the sum of its proper divisors (1221725650).

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

1029428750 is an frugal number, since it uses more digits than its factorization.

1029428750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1029428750 is about 32084.7120915865. The cubic root of 1029428750 is about 1009.7148984531.

The spelling of 1029428750 in words is "one billion, twenty-nine million, four hundred twenty-eight thousand, seven hundred fifty".