454543812 has 60 divisors (see below), whose sum is σ = 1206060240. Its totient is φ = 149246064.

The previous prime is 454543787. The next prime is 454543861. The reversal of 454543812 is 218345454.

It is a happy number.

It is a super-2 number, since 2×454543812² = 413220154054982688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11239 + ... + 32177.

It is an arithmetic number, because the mean of its divisors is an integer number (20101004).

Almost surely, 2^454543812 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 454543812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603030120).

454543812 is an abundant number, since it is smaller than the sum of its proper divisors (751516428).

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

454543812 is a wasteful number, since it uses less digits than its factorization.

454543812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022 (or 21011 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 454543812 is about 21320.0331144208. The cubic root of 454543812 is about 768.8800336848.

The spelling of 454543812 in words is "four hundred fifty-four million, five hundred forty-three thousand, eight hundred twelve".