1428843554 has 4 divisors (see below), whose sum is σ = 2143265334. Its totient is φ = 714421776.

The previous prime is 1428843553. The next prime is 1428843587. The reversal of 1428843554 is 4553488241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1191837529 + 237006025 = 34523^2 + 15395^2 .

It is not an unprimeable number, because it can be changed into a prime (1428843553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357210887 + ... + 357210890.

Almost surely, 2^1428843554 is an apocalyptic number.

1428843554 is a deficient number, since it is larger than the sum of its proper divisors (714421780).

1428843554 is an equidigital number, since it uses as much as digits as its factorization.

1428843554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714421779.

The product of its digits is 614400, while the sum is 44.

The square root of 1428843554 is about 37800.0470105528. The cubic root of 1428843554 is about 1126.3193880637.

The spelling of 1428843554 in words is "one billion, four hundred twenty-eight million, eight hundred forty-three thousand, five hundred fifty-four".