1001450856 has 32 divisors (see below), whose sum is σ = 2861288640. Its totient is φ = 286128768.

The previous prime is 1001450851. The next prime is 1001450897. The reversal of 1001450856 is 6580541001.

It is not an unprimeable number, because it can be changed into a prime (1001450851) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2980341 + ... + 2980676.

It is an arithmetic number, because the mean of its divisors is an integer number (89415270).

Almost surely, 2^1001450856 is an apocalyptic number.

It is an amenable number.

1001450856 is an abundant number, since it is smaller than the sum of its proper divisors (1859837784).

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

1001450856 is a wasteful number, since it uses less digits than its factorization.

1001450856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961033 (or 5961029 counting only the distinct ones).

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

The square root of 1001450856 is about 31645.7083346226. The cubic root of 1001450856 is about 1000.4833849680.

Adding to 1001450856 its reverse (6580541001), we get a palindrome (7581991857).

It can be divided in two parts, 100 and 1450856, that added together give a triangular number (1450956 = T₁₇₀₃).

The spelling of 1001450856 in words is "one billion, one million, four hundred fifty thousand, eight hundred fifty-six".