1005020454 has 32 divisors (see below), whose sum is σ = 2064061440. Its totient is φ = 326043200.

The previous prime is 1005020453. The next prime is 1005020459. The reversal of 1005020454 is 4540205001.

It is a super-2 number, since 2×1005020454² = 2020132225916732232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005020454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005020453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101287 + ... + 110765.

It is an arithmetic number, because the mean of its divisors is an integer number (64501920).

Almost surely, 2^1005020454 is an apocalyptic number.

1005020454 is an abundant number, since it is smaller than the sum of its proper divisors (1059040986).

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

1005020454 is a wasteful number, since it uses less digits than its factorization.

1005020454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9956.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1005020454 is about 31702.0575672936. The cubic root of 1005020454 is about 1001.6706919008.

Adding to 1005020454 its reverse (4540205001), we get a palindrome (5545225455).

The spelling of 1005020454 in words is "one billion, five million, twenty thousand, four hundred fifty-four".