1428635246 has 8 divisors (see below), whose sum is σ = 2183386104. Its totient is φ = 700839880.

The previous prime is 1428635177. The next prime is 1428635261. The reversal of 1428635246 is 6425368241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1428635246² = 4081997332226961032, which contains 22 as substring.

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, 6738740 + ... + 6738951.

It is an arithmetic number, because the mean of its divisors is an integer number (272923263).

Almost surely, 2^1428635246 is an apocalyptic number.

1428635246 is a deficient number, since it is larger than the sum of its proper divisors (754750858).

1428635246 is a wasteful number, since it uses less digits than its factorization.

1428635246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13477746.

The product of its digits is 276480, while the sum is 41.

The square root of 1428635246 is about 37797.2915167211. The cubic root of 1428635246 is about 1126.2646508507.

The spelling of 1428635246 in words is "one billion, four hundred twenty-eight million, six hundred thirty-five thousand, two hundred forty-six".