4000454280 has 192 divisors, whose sum is σ = 13877360640. Its totient is φ = 995936256.

The previous prime is 4000454273. The next prime is 4000454281. The reversal of 4000454280 is 824540004.

4000454280 is a `hidden beast` number, since 40 + 0 + 0 + 4 + 542 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (4000454281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 774667 + ... + 779813.

It is an arithmetic number, because the mean of its divisors is an integer number (72277920).

Almost surely, 2^4000454280 is an apocalyptic number.

4000454280 is a gapful number since it is divisible by the number (40) 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 4000454280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6938680320).

4000454280 is an abundant number, since it is smaller than the sum of its proper divisors (9876906360).

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

4000454280 is a wasteful number, since it uses less digits than its factorization.

4000454280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308 (or 5301 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 4000454280 is about 63249.1445001432. The cubic root of 4000454280 is about 1587.4611434059.

Adding to 4000454280 its reverse (824540004), we get a palindrome (4824994284).

The spelling of 4000454280 in words is "four billion, four hundred fifty-four thousand, two hundred eighty".