1028469025 has 12 divisors (see below), whose sum is σ = 1280271852. Its totient is φ = 819568640.

The previous prime is 1028469011. The next prime is 1028469037. The reversal of 1028469025 is 5209648201.

It can be written as a sum of positive squares in 6 ways, for example, as 32182929 + 996286096 = 5673^2 + 31564^2 .

It is not a de Polignac number, because 1028469025 - 2¹⁹ = 1027944737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73612 + ... + 86461.

It is an arithmetic number, because the mean of its divisors is an integer number (106689321).

Almost surely, 2^1028469025 is an apocalyptic number.

It is an amenable number.

1028469025 is a deficient number, since it is larger than the sum of its proper divisors (251802827).

1028469025 is a wasteful number, since it uses less digits than its factorization.

1028469025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160340 (or 160335 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1028469025 is about 32069.7524935881. The cubic root of 1028469025 is about 1009.4010188924.

The spelling of 1028469025 in words is "one billion, twenty-eight million, four hundred sixty-nine thousand, twenty-five".