1377875028 has 96 divisors (see below), whose sum is σ = 3429216000. Its totient is φ = 429829120.

The previous prime is 1377875021. The next prime is 1377875029. The reversal of 1377875028 is 8205787731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377875021) 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 31 ways as a sum of consecutive naturals, for example, 3837913 + ... + 3838271.

It is an arithmetic number, because the mean of its divisors is an integer number (35721000).

Almost surely, 2^1377875028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377875028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714608000).

1377875028 is an abundant number, since it is smaller than the sum of its proper divisors (2051340972).

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

1377875028 is a wasteful number, since it uses less digits than its factorization.

1377875028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 48.

The square root of 1377875028 is about 37119.7390615829. The cubic root of 1377875028 is about 1112.7645366459.

The spelling of 1377875028 in words is "one billion, three hundred seventy-seven million, eight hundred seventy-five thousand, twenty-eight".