1283825428 has 12 divisors (see below), whose sum is σ = 2246946912. Its totient is φ = 641840600.

The previous prime is 1283825423. The next prime is 1283825437. The reversal of 1283825428 is 8245283821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283825423) 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, 54003 + ... + 74053.

It is an arithmetic number, because the mean of its divisors is an integer number (187245576).

Almost surely, 2^1283825428 is an apocalyptic number.

It is an amenable number.

1283825428 is a deficient number, since it is larger than the sum of its proper divisors (963121484).

1283825428 is a wasteful number, since it uses less digits than its factorization.

1283825428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36062 (or 36060 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 1283825428 is about 35830.5097368151. The cubic root of 1283825428 is about 1086.8476176682.

The spelling of 1283825428 in words is "one billion, two hundred eighty-three million, eight hundred twenty-five thousand, four hundred twenty-eight".