1428937878 has 16 divisors (see below), whose sum is σ = 2858348736. Its totient is φ = 476233800.

The previous prime is 1428937837. The next prime is 1428937879. The reversal of 1428937878 is 8787398241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428937879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28725 + ... + 60687.

It is an arithmetic number, because the mean of its divisors is an integer number (178646796).

Almost surely, 2^1428937878 is an apocalyptic number.

1428937878 is an abundant number, since it is smaller than the sum of its proper divisors (1429410858).

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

1428937878 is a wasteful number, since it uses less digits than its factorization.

1428937878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39419.

The product of its digits is 5419008, while the sum is 57.

The square root of 1428937878 is about 37801.2946603684. The cubic root of 1428937878 is about 1126.3441718855.

The spelling of 1428937878 in words is "one billion, four hundred twenty-eight million, nine hundred thirty-seven thousand, eight hundred seventy-eight".