1009842192 has 30 divisors (see below), whose sum is σ = 2826155982. Its totient is φ = 336614016.

The previous prime is 1009842173. The next prime is 1009842193. The reversal of 1009842192 is 2912489001.

It can be written as a sum of positive squares in only one way, i.e., 891380736 + 118461456 = 29856^2 + 10884^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1009842193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3506253 + ... + 3506540.

Almost surely, 2^1009842192 is an apocalyptic number.

1009842192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1009842192 is an abundant number, since it is smaller than the sum of its proper divisors (1816313790).

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

1009842192 is a wasteful number, since it uses less digits than its factorization.

1009842192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7012807 (or 7012798 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1009842192 is about 31778.0142866102. The cubic root of 1009842192 is about 1003.2700259415.

The spelling of 1009842192 in words is "one billion, nine million, eight hundred forty-two thousand, one hundred ninety-two".