1004891454 has 128 divisors (see below), whose sum is σ = 2716001280. Its totient is φ = 268849152.

The previous prime is 1004891449. The next prime is 1004891507. The reversal of 1004891454 is 4541984001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2268157 + ... + 2268599.

It is an arithmetic number, because the mean of its divisors is an integer number (21218760).

Almost surely, 2^1004891454 is an apocalyptic number.

1004891454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004891454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1358000640).

1004891454 is an abundant number, since it is smaller than the sum of its proper divisors (1711109826).

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

1004891454 is a wasteful number, since it uses less digits than its factorization.

1004891454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1004891454 is about 31700.0229337456. The cubic root of 1004891454 is about 1001.6278333873.

The spelling of 1004891454 in words is "one billion, four million, eight hundred ninety-one thousand, four hundred fifty-four".