1001873428 has 12 divisors (see below), whose sum is σ = 1758811572. Its totient is φ = 499355840.

The previous prime is 1001873423. The next prime is 1001873429. The reversal of 1001873428 is 8243781001.

It is a happy number.

1001873428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 124055044 + 877818384 = 11138^2 + 29628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001873393 and 1001873402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001873423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393793 + ... + 396328.

It is an arithmetic number, because the mean of its divisors is an integer number (146567631).

Almost surely, 2^1001873428 is an apocalyptic number.

It is an amenable number.

1001873428 is a deficient number, since it is larger than the sum of its proper divisors (756938144).

1001873428 is a wasteful number, since it uses less digits than its factorization.

1001873428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790442 (or 790440 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 1001873428 is about 31652.3842387900. The cubic root of 1001873428 is about 1000.6240864351.

The spelling of 1001873428 in words is "one billion, one million, eight hundred seventy-three thousand, four hundred twenty-eight".