454321140 has 144 divisors (see below), whose sum is σ = 1593752832. Its totient is φ = 95848704.

The previous prime is 454321069. The next prime is 454321177. The reversal of 454321140 is 41123454.

It is a self number, because there is not a number n which added to its sum of digits gives 454321140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32277 + ... + 44163.

It is an arithmetic number, because the mean of its divisors is an integer number (11067728).

Almost surely, 2^454321140 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 454321140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796876416).

454321140 is an abundant number, since it is smaller than the sum of its proper divisors (1139431692).

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

454321140 is a wasteful number, since it uses less digits than its factorization.

454321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11926 (or 11917 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 454321140 is about 21314.8103439838. The cubic root of 454321140 is about 768.7544601499.

Adding to 454321140 its reverse (41123454), we get a palindrome (495444594).

The spelling of 454321140 in words is "four hundred fifty-four million, three hundred twenty-one thousand, one hundred forty".