1428828583 has 36 divisors (see below), whose sum is σ = 1815872400. Its totient is φ = 1123301088.

The previous prime is 1428828581. The next prime is 1428828629. The reversal of 1428828583 is 3858288241.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 1428828583 - 2¹ = 1428828581 is a prime.

It is a super-2 number, since 2×1428828583² = 4083102239195575778, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428828581) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9100741 + ... + 9100897.

It is an arithmetic number, because the mean of its divisors is an integer number (50440900).

Almost surely, 2^1428828583 is an apocalyptic number.

1428828583 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1428828583 is a deficient number, since it is larger than the sum of its proper divisors (387043817).

1428828583 is an frugal number, since it uses more digits than its factorization.

1428828583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 177 counting only the distinct ones).

The product of its digits is 983040, while the sum is 49.

The square root of 1428828583 is about 37799.8489811798. The cubic root of 1428828583 is about 1126.3154543029.

The spelling of 1428828583 in words is "one billion, four hundred twenty-eight million, eight hundred twenty-eight thousand, five hundred eighty-three".