2001898562 has 4 divisors (see below), whose sum is σ = 3002847846. Its totient is φ = 1000949280.

The previous prime is 2001898559. The next prime is 2001898567. The reversal of 2001898562 is 2658981002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1606326241 + 395572321 = 40079^2 + 19889^2 .

It is not an unprimeable number, because it can be changed into a prime (2001898567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500474639 + ... + 500474642.

Almost surely, 2^2001898562 is an apocalyptic number.

2001898562 is a deficient number, since it is larger than the sum of its proper divisors (1000949284).

2001898562 is a wasteful number, since it uses less digits than its factorization.

2001898562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000949283.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 2001898562 is about 44742.5810833483. The cubic root of 2001898562 is about 1260.3195968485.

The spelling of 2001898562 in words is "two billion, one million, eight hundred ninety-eight thousand, five hundred sixty-two".