1284374425 has 12 divisors (see below), whose sum is σ = 1593269676. Its totient is φ = 1027083200.

The previous prime is 1284374411. The next prime is 1284374437. The reversal of 1284374425 is 5244734821.

It can be written as a sum of positive squares in 6 ways, for example, as 93296281 + 1191078144 = 9659^2 + 34512^2 .

It is not a de Polignac number, because 1284374425 - 2⁷ = 1284374297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62547 + ... + 80503.

It is an arithmetic number, because the mean of its divisors is an integer number (132772473).

Almost surely, 2^1284374425 is an apocalyptic number.

It is an amenable number.

1284374425 is a deficient number, since it is larger than the sum of its proper divisors (308895251).

1284374425 is a wasteful number, since it uses less digits than its factorization.

1284374425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20828 (or 20823 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 1284374425 is about 35838.1699449065. The cubic root of 1284374425 is about 1087.0025169864.

The spelling of 1284374425 in words is "one billion, two hundred eighty-four million, three hundred seventy-four thousand, four hundred twenty-five".