1000563420 has 48 divisors (see below), whose sum is σ = 2827778688. Its totient is φ = 264321600.

The previous prime is 1000563413. The next prime is 1000563433. The reversal of 1000563420 is 243650001.

It is a happy number.

It is a super-2 number, since 2×1000563420² = 2002254314884192800, which contains 22 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71506 + ... + 84345.

It is an arithmetic number, because the mean of its divisors is an integer number (58912056).

Almost surely, 2^1000563420 is an apocalyptic number.

1000563420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000563420 is an abundant number, since it is smaller than the sum of its proper divisors (1827215268).

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

1000563420 is a wasteful number, since it uses less digits than its factorization.

1000563420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155970 (or 155968 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1000563420 is about 31631.6837996336. The cubic root of 1000563420 is about 1000.1877714064.

The spelling of 1000563420 in words is "one billion, five hundred sixty-three thousand, four hundred twenty".