1009162840 has 192 divisors, whose sum is σ = 2889872640. Its totient is φ = 314818560.

The previous prime is 1009162813. The next prime is 1009162849. The reversal of 1009162840 is 482619001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009162849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1032432 + ... + 1033408.

It is an arithmetic number, because the mean of its divisors is an integer number (15051420).

Almost surely, 2^1009162840 is an apocalyptic number.

1009162840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1009162840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444936320).

1009162840 is an abundant number, since it is smaller than the sum of its proper divisors (1880709800).

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

1009162840 is a wasteful number, since it uses less digits than its factorization.

1009162840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1009162840 is about 31767.3234629548. The cubic root of 1009162840 is about 1003.0449985726.

The spelling of 1009162840 in words is "one billion, nine million, one hundred sixty-two thousand, eight hundred forty".