1284520348 has 6 divisors (see below), whose sum is σ = 2247910616. Its totient is φ = 642260172.

The previous prime is 1284520331. The next prime is 1284520351. The reversal of 1284520348 is 8430254821.

It is a happy number.

It is a super-2 number, since 2×1284520348² = 3299985048852082208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160565040 + ... + 160565047.

Almost surely, 2^1284520348 is an apocalyptic number.

It is an amenable number.

1284520348 is a deficient number, since it is larger than the sum of its proper divisors (963390268).

1284520348 is a wasteful number, since it uses less digits than its factorization.

1284520348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321130091 (or 321130089 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 1284520348 is about 35840.2057471773. The cubic root of 1284520348 is about 1087.0436816859.

The spelling of 1284520348 in words is "one billion, two hundred eighty-four million, five hundred twenty thousand, three hundred forty-eight".