1025305488 has 30 divisors (see below), whose sum is σ = 2869431734. Its totient is φ = 341768448.

The previous prime is 1025305487. The next prime is 1025305571. The reversal of 1025305488 is 8845035201.

It is a happy number.

1025305488 is a `hidden beast` number, since 102 + 5 + 3 + 0 + 548 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 860131584 + 165173904 = 29328^2 + 12852^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1025305487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3559945 + ... + 3560232.

Almost surely, 2^1025305488 is an apocalyptic number.

1025305488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1025305488 is an abundant number, since it is smaller than the sum of its proper divisors (1844126246).

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

1025305488 is a wasteful number, since it uses less digits than its factorization.

1025305488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120191 (or 7120182 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1025305488 is about 32020.3917527566. The cubic root of 1025305488 is about 1008.3649944266.

The spelling of 1025305488 in words is "one billion, twenty-five million, three hundred five thousand, four hundred eighty-eight".