1009955412 has 96 divisors (see below), whose sum is σ = 2764227200. Its totient is φ = 318007296.

The previous prime is 1009955383. The next prime is 1009955413. The reversal of 1009955412 is 2145599001.

1009955412 is a `hidden beast` number, since 1 + 0 + 0 + 99 + 554 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009955413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1183578 + ... + 1184430.

Almost surely, 2^1009955412 is an apocalyptic number.

1009955412 is a gapful number since it is divisible by the number (12) 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 1009955412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382113600).

1009955412 is an abundant number, since it is smaller than the sum of its proper divisors (1754271788).

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

1009955412 is a wasteful number, since it uses less digits than its factorization.

1009955412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 1009955412 is about 31779.7956569894. The cubic root of 1009955412 is about 1003.3075189242.

The spelling of 1009955412 in words is "one billion, nine million, nine hundred fifty-five thousand, four hundred twelve".