1008855456 has 96 divisors (see below), whose sum is σ = 3043837440. Its totient is φ = 286599936.

The previous prime is 1008855443. The next prime is 1008855461. The reversal of 1008855456 is 6545588001.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1008855456² = 2035578662201935872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 15 ways as a sum of consecutive naturals, for example, 116095 + ... + 124481.

It is an arithmetic number, because the mean of its divisors is an integer number (31706640).

Almost surely, 2^1008855456 is an apocalyptic number.

1008855456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1008855456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521918720).

1008855456 is an abundant number, since it is smaller than the sum of its proper divisors (2034981984).

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

1008855456 is a wasteful number, since it uses less digits than its factorization.

1008855456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586 (or 8578 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 42.

The square root of 1008855456 is about 31762.4850413188. The cubic root of 1008855456 is about 1002.9431480483.

The spelling of 1008855456 in words is "one billion, eight million, eight hundred fifty-five thousand, four hundred fifty-six".