1428748365 has 32 divisors (see below), whose sum is σ = 2579817600. Its totient is φ = 668837120.

The previous prime is 1428748351. The next prime is 1428748393. The reversal of 1428748365 is 5638478241.

It is not a de Polignac number, because 1428748365 - 2⁵ = 1428748333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144510 + ... + 154079.

It is an arithmetic number, because the mean of its divisors is an integer number (80619300).

Almost surely, 2^1428748365 is an apocalyptic number.

1428748365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1428748365 is a deficient number, since it is larger than the sum of its proper divisors (1151069235).

1428748365 is a wasteful number, since it uses less digits than its factorization.

1428748365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298637.

The product of its digits is 1290240, while the sum is 48.

The square root of 1428748365 is about 37798.7878773910. The cubic root of 1428748365 is about 1126.2943758555.

The spelling of 1428748365 in words is "one billion, four hundred twenty-eight million, seven hundred forty-eight thousand, three hundred sixty-five".