1000481556 has 96 divisors (see below), whose sum is σ = 2555280000. Its totient is φ = 303464448.

The previous prime is 1000481533. The next prime is 1000481561. The reversal of 1000481556 is 6551840001.

It is a super-2 number, since 2×1000481556² = 2001926687792362272, 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 (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2228020 + ... + 2228468.

It is an arithmetic number, because the mean of its divisors is an integer number (26617500).

Almost surely, 2^1000481556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000481556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277640000).

1000481556 is an abundant number, since it is smaller than the sum of its proper divisors (1554798444).

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

1000481556 is a wasteful number, since it uses less digits than its factorization.

1000481556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1000481556 is about 31630.3897541589. The cubic root of 1000481556 is about 1000.1604929073.

The spelling of 1000481556 in words is "one billion, four hundred eighty-one thousand, five hundred fifty-six".