1001900992 has 28 divisors (see below), whose sum is σ = 1991608920. Its totient is φ = 500078336.

The previous prime is 1001900971. The next prime is 1001901011. The reversal of 1001900992 is 2990091001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24234 + ... + 50902.

It is an arithmetic number, because the mean of its divisors is an integer number (71128890).

Almost surely, 2^1001900992 is an apocalyptic number.

It is an amenable number.

1001900992 is a deficient number, since it is larger than the sum of its proper divisors (989707928).

1001900992 is an equidigital number, since it uses as much as digits as its factorization.

1001900992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27268 (or 27258 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 1001900992 is about 31652.8196532315. The cubic root of 1001900992 is about 1000.6332628935.

Adding to 1001900992 its reverse (2990091001), we get a palindrome (3991991993).

The spelling of 1001900992 in words is "one billion, one million, nine hundred thousand, nine hundred ninety-two".