1000450928 has 40 divisors (see below), whose sum is σ = 2045501520. Its totient is φ = 472711680.

The previous prime is 1000450859. The next prime is 1000450937. The reversal of 1000450928 is 8290540001.

It is a super-2 number, since 2×1000450928² = 2001804118672122368, 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 1000450928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124076 + ... + 131892.

It is an arithmetic number, because the mean of its divisors is an integer number (51137538).

Almost surely, 2^1000450928 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 1000450928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1022750760).

1000450928 is an abundant number, since it is smaller than the sum of its proper divisors (1045050592).

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

1000450928 is a wasteful number, since it uses less digits than its factorization.

1000450928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265 (or 8259 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1000450928 is about 31629.9055958123. The cubic root of 1000450928 is about 1000.1502867461.

Adding to 1000450928 its reverse (8290540001), we get a palindrome (9290990929).

The spelling of 1000450928 in words is "one billion, four hundred fifty thousand, nine hundred twenty-eight".