1009442170 has 32 divisors (see below), whose sum is σ = 2068364160. Its totient is φ = 351109440.

The previous prime is 1009442149. The next prime is 1009442191. The reversal of 1009442170 is 712449001.

It is an interprime number because it is at equal distance from previous prime (1009442149) and next prime (1009442191).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196965 + ... + 202024.

It is an arithmetic number, because the mean of its divisors is an integer number (64636380).

Almost surely, 2^1009442170 is an apocalyptic number.

1009442170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1009442170 is an abundant number, since it is smaller than the sum of its proper divisors (1058921990).

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

1009442170 is a wasteful number, since it uses less digits than its factorization.

1009442170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399030.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1009442170 is about 31771.7196575823. The cubic root of 1009442170 is about 1003.1375355751.

The spelling of 1009442170 in words is "one billion, nine million, four hundred forty-two thousand, one hundred seventy".