452161140 has 96 divisors (see below), whose sum is σ = 1325721600. Its totient is φ = 114930816.

The previous prime is 452161093. The next prime is 452161147. The reversal of 452161140 is 41161254.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 452161140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452161147) 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, 754561 + ... + 755159.

It is an arithmetic number, because the mean of its divisors is an integer number (13809600).

Almost surely, 2^452161140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452161140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662860800).

452161140 is an abundant number, since it is smaller than the sum of its proper divisors (873560460).

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

452161140 is a wasteful number, since it uses less digits than its factorization.

452161140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1179 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 452161140 is about 21264.0809817871. The cubic root of 452161140 is about 767.5342159906.

The spelling of 452161140 in words is "four hundred fifty-two million, one hundred sixty-one thousand, one hundred forty".