2001670572 has 36 divisors (see below), whose sum is σ = 5133764888. Its totient is φ = 606566400.

The previous prime is 2001670549. The next prime is 2001670591. The reversal of 2001670572 is 2750761002.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 687829 + ... + 690732.

Almost surely, 2^2001670572 is an apocalyptic number.

2001670572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2001670572 is an abundant number, since it is smaller than the sum of its proper divisors (3132094316).

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

2001670572 is a wasteful number, since it uses less digits than its factorization.

2001670572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378590 (or 1378577 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 2001670572 is about 44740.0332141137. The cubic root of 2001670572 is about 1260.2717504059.

The spelling of 2001670572 in words is "two billion, one million, six hundred seventy thousand, five hundred seventy-two".