1428685454 has 48 divisors (see below), whose sum is σ = 2549131200. Its totient is φ = 598643136.

The previous prime is 1428685451. The next prime is 1428685459. The reversal of 1428685454 is 4545868241.

It is a super-2 number, since 2×1428685454² = 4082284252942372232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1428685399 and 1428685408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428685451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 843032 + ... + 844724.

It is an arithmetic number, because the mean of its divisors is an integer number (53106900).

Almost surely, 2^1428685454 is an apocalyptic number.

1428685454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1428685454 is a deficient number, since it is larger than the sum of its proper divisors (1120445746).

1428685454 is a wasteful number, since it uses less digits than its factorization.

1428685454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1890 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 47.

The square root of 1428685454 is about 37797.9556854600. The cubic root of 1428685454 is about 1126.2778445224.

The spelling of 1428685454 in words is "one billion, four hundred twenty-eight million, six hundred eighty-five thousand, four hundred fifty-four".