1016209272 has 128 divisors (see below), whose sum is σ = 2968176960. Its totient is φ = 287047680.

The previous prime is 1016209247. The next prime is 1016209277. The reversal of 1016209272 is 2729026101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016209277) 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, 215128 + ... + 219800.

Almost surely, 2^1016209272 is an apocalyptic number.

1016209272 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 1016209272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484088480).

1016209272 is an abundant number, since it is smaller than the sum of its proper divisors (1951967688).

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

1016209272 is a wasteful number, since it uses less digits than its factorization.

1016209272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753 (or 4749 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1016209272 is about 31878.0374552763. The cubic root of 1016209272 is about 1005.3741573613.

The spelling of 1016209272 in words is "one billion, sixteen million, two hundred nine thousand, two hundred seventy-two".