1002026454 has 128 divisors (see below), whose sum is σ = 2461003776. Its totient is φ = 267840000.

The previous prime is 1002026453. The next prime is 1002026477. The reversal of 1002026454 is 4546202001.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002026453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2686212 + ... + 2686584.

It is an arithmetic number, because the mean of its divisors is an integer number (19226592).

Almost surely, 2^1002026454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002026454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230501888).

1002026454 is an abundant number, since it is smaller than the sum of its proper divisors (1458977322).

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

1002026454 is a wasteful number, since it uses less digits than its factorization.

1002026454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1002026454 is about 31654.8014367489. The cubic root of 1002026454 is about 1000.6750289001.

Adding to 1002026454 its reverse (4546202001), we get a palindrome (5548228455).

The spelling of 1002026454 in words is "one billion, two million, twenty-six thousand, four hundred fifty-four".