1009029870 has 48 divisors (see below), whose sum is σ = 2656704960. Its totient is φ = 265666752.

The previous prime is 1009029869. The next prime is 1009029899. The reversal of 1009029870 is 789209001.

It is a happy number.

1009029870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63849 + ... + 78068.

It is an arithmetic number, because the mean of its divisors is an integer number (55348020).

Almost surely, 2^1009029870 is an apocalyptic number.

1009029870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1009029870 is an abundant number, since it is smaller than the sum of its proper divisors (1647675090).

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

1009029870 is a wasteful number, since it uses less digits than its factorization.

1009029870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142009 (or 142006 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1009029870 is about 31765.2305201772. The cubic root of 1009029870 is about 1003.0009420053. Note that the first 3 decimals are identical.

The spelling of 1009029870 in words is "one billion, nine million, twenty-nine thousand, eight hundred seventy".