1428702645 has 16 divisors (see below), whose sum is σ = 2347706880. Its totient is φ = 741380544.

The previous prime is 1428702623. The next prime is 1428702659. The reversal of 1428702645 is 5462078241.

It is not a de Polignac number, because 1428702645 - 2¹³ = 1428694453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286565 + ... + 1287674.

It is an arithmetic number, because the mean of its divisors is an integer number (146731680).

Almost surely, 2^1428702645 is an apocalyptic number.

1428702645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1428702645 is a deficient number, since it is larger than the sum of its proper divisors (919004235).

1428702645 is a wasteful number, since it uses less digits than its factorization.

1428702645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574284.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 1428702645 is about 37798.1830912545. The cubic root of 1428702645 is about 1126.2823619070.

The spelling of 1428702645 in words is "one billion, four hundred twenty-eight million, seven hundred two thousand, six hundred forty-five".