454378840 has 16 divisors (see below), whose sum is σ = 1022352480. Its totient is φ = 181751520.

The previous prime is 454378831. The next prime is 454378879. The reversal of 454378840 is 48873454.

454378840 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×454378840³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5679696 + ... + 5679775.

It is an arithmetic number, because the mean of its divisors is an integer number (63897030).

Almost surely, 2^454378840 is an apocalyptic number.

454378840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454378840 is an abundant number, since it is smaller than the sum of its proper divisors (567973640).

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

454378840 is a wasteful number, since it uses less digits than its factorization.

454378840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11359482 (or 11359478 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 454378840 is about 21316.1638199747. The cubic root of 454378840 is about 768.7870033965.

The spelling of 454378840 in words is "four hundred fifty-four million, three hundred seventy-eight thousand, eight hundred forty".