454186044 has 72 divisors (see below), whose sum is σ = 1259792352. Its totient is φ = 137105280.

The previous prime is 454186001. The next prime is 454186049. The reversal of 454186044 is 440681454.

It is a happy number.

454186044 is a `hidden beast` number, since 4 + 5 + 41 + 8 + 604 + 4 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454186049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15649 + ... + 33959.

It is an arithmetic number, because the mean of its divisors is an integer number (17497116).

Almost surely, 2^454186044 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 454186044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629896176).

454186044 is an abundant number, since it is smaller than the sum of its proper divisors (805606308).

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

454186044 is a wasteful number, since it uses less digits than its factorization.

454186044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387 (or 18382 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 454186044 is about 21311.6410442744. The cubic root of 454186044 is about 768.6782541808.

The spelling of 454186044 in words is "four hundred fifty-four million, one hundred eighty-six thousand, forty-four".