1028025361 has 4 divisors (see below), whose sum is σ = 1121482224. Its totient is φ = 934568500.

The previous prime is 1028025359. The next prime is 1028025371. The reversal of 1028025361 is 1635208201.

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 1028025361 - 2¹ = 1028025359 is a prime.

It is a super-2 number, since 2×1028025361² = 2113672285718360642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028025331) 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, 46728415 + ... + 46728436.

It is an arithmetic number, because the mean of its divisors is an integer number (280370556).

Almost surely, 2^1028025361 is an apocalyptic number.

1028025361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1028025361 is a deficient number, since it is larger than the sum of its proper divisors (93456863).

1028025361 is an equidigital number, since it uses as much as digits as its factorization.

1028025361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93456862.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1028025361 is about 32062.8345752524. The cubic root of 1028025361 is about 1009.2558518871.

The spelling of 1028025361 in words is "one billion, twenty-eight million, twenty-five thousand, three hundred sixty-one".