1641465224 has 64 divisors (see below), whose sum is σ = 3603087360. Its totient is φ = 686445120.

The previous prime is 1641465223. The next prime is 1641465229. The reversal of 1641465224 is 4225641461.

It is a Cunningham number, because it is equal to 40515²-1.

It is not an unprimeable number, because it can be changed into a prime (1641465223) 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, 1133669 + ... + 1135115.

It is an arithmetic number, because the mean of its divisors is an integer number (56298240).

Almost surely, 2^1641465224 is an apocalyptic number.

1641465224 is a gapful number since it is divisible by the number (14) 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 1641465224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801543680).

1641465224 is an abundant number, since it is smaller than the sum of its proper divisors (1961622136).

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

1641465224 is a wasteful number, since it uses less digits than its factorization.

1641465224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1934 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 1641465224 is about 40514.9999876589. Note that the first 4 decimals coincide. The cubic root of 1641465224 is about 1179.6248026708.

The spelling of 1641465224 in words is "one billion, six hundred forty-one million, four hundred sixty-five thousand, two hundred twenty-four".