1641502272 has 112 divisors (see below), whose sum is σ = 4547128320. Its totient is φ = 521630208.

The previous prime is 1641502241. The next prime is 1641502279. The reversal of 1641502272 is 2722051461.

It is not an unprimeable number, because it can be changed into a prime (1641502279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2220879 + ... + 2221617.

It is an arithmetic number, because the mean of its divisors is an integer number (40599360).

Almost surely, 2^1641502272 is an apocalyptic number.

1641502272 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 1641502272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2273564160).

1641502272 is an abundant number, since it is smaller than the sum of its proper divisors (2905626048).

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

1641502272 is a wasteful number, since it uses less digits than its factorization.

1641502272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1641502272 is about 40515.4571984570. The cubic root of 1641502272 is about 1179.6336773457.

The spelling of 1641502272 in words is "one billion, six hundred forty-one million, five hundred two thousand, two hundred seventy-two".