1428397492 has 12 divisors (see below), whose sum is σ = 2552880960. Its totient is φ = 699002936.

The previous prime is 1428397471. The next prime is 1428397507. The reversal of 1428397492 is 2947938241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3798742 + ... + 3799117.

It is an arithmetic number, because the mean of its divisors is an integer number (212740080).

Almost surely, 2^1428397492 is an apocalyptic number.

It is an amenable number.

1428397492 is a deficient number, since it is larger than the sum of its proper divisors (1124483468).

1428397492 is a wasteful number, since it uses less digits than its factorization.

1428397492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7597910 (or 7597908 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 1428397492 is about 37794.1462663201. The cubic root of 1428397492 is about 1126.2021695929.

The spelling of 1428397492 in words is "one billion, four hundred twenty-eight million, three hundred ninety-seven thousand, four hundred ninety-two".