1428458838 has 32 divisors (see below), whose sum is σ = 3030020352. Its totient is φ = 447981600.

The previous prime is 1428458833. The next prime is 1428458849. The reversal of 1428458838 is 8388548241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428458833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76428 + ... + 93263.

It is an arithmetic number, because the mean of its divisors is an integer number (94688136).

Almost surely, 2^1428458838 is an apocalyptic number.

1428458838 is an abundant number, since it is smaller than the sum of its proper divisors (1601561514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428458838 is a wasteful number, since it uses less digits than its factorization.

1428458838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169780.

The product of its digits is 1966080, while the sum is 51.

The square root of 1428458838 is about 37794.9578383149. The cubic root of 1428458838 is about 1126.2182918580.

The spelling of 1428458838 in words is "one billion, four hundred twenty-eight million, four hundred fifty-eight thousand, eight hundred thirty-eight".