1001906128 has 40 divisors (see below), whose sum is σ = 2080366848. Its totient is φ = 466215552.

The previous prime is 1001906099. The next prime is 1001906131. The reversal of 1001906128 is 8216091001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001906096 and 1001906105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23176 + ... + 50407.

Almost surely, 2^1001906128 is an apocalyptic number.

It is an amenable number.

1001906128 is an abundant number, since it is smaller than the sum of its proper divisors (1078460720).

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

1001906128 is a wasteful number, since it uses less digits than its factorization.

1001906128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73651 (or 73645 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1001906128 is about 31652.9007833405. The cubic root of 1001906128 is about 1000.6349727243.

Adding to 1001906128 its reverse (8216091001), we get a palindrome (9217997129).

The spelling of 1001906128 in words is "one billion, one million, nine hundred six thousand, one hundred twenty-eight".