1028650481 has 4 divisors (see below), whose sum is σ = 1082790000. Its totient is φ = 974510964.

The previous prime is 1028650477. The next prime is 1028650487. The reversal of 1028650481 is 1840568201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1028650481 - 2² = 1028650477 is a prime.

It is a super-2 number, since 2×1028650481² = 2116243624123062722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028650487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27069731 + ... + 27069768.

It is an arithmetic number, because the mean of its divisors is an integer number (270697500).

Almost surely, 2^1028650481 is an apocalyptic number.

It is an amenable number.

1028650481 is a deficient number, since it is larger than the sum of its proper divisors (54139519).

1028650481 is an equidigital number, since it uses as much as digits as its factorization.

1028650481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54139518.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 1028650481 is about 32072.5814520752. The cubic root of 1028650481 is about 1009.4603793256.

The spelling of 1028650481 in words is "one billion, twenty-eight million, six hundred fifty thousand, four hundred eighty-one".