2002662261 has 24 divisors (see below), whose sum is σ = 2976134616. Its totient is φ = 1296898560.

The previous prime is 2002662253. The next prime is 2002662283. The reversal of 2002662261 is 1622662002.

It can be written as a sum of positive squares in 4 ways, for example, as 239166225 + 1763496036 = 15465^2 + 41994^2 .

It is not a de Polignac number, because 2002662261 - 2³ = 2002662253 is a prime.

It is a super-2 number, since 2×2002662261² = 8021312263267264242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002662061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74331 + ... + 97623.

It is an arithmetic number, because the mean of its divisors is an integer number (124005609).

Almost surely, 2^2002662261 is an apocalyptic number.

It is an amenable number.

2002662261 is a deficient number, since it is larger than the sum of its proper divisors (973472355).

2002662261 is a wasteful number, since it uses less digits than its factorization.

2002662261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23573 (or 23570 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2002662261 is about 44751.1146341630. The cubic root of 2002662261 is about 1260.4798418056.

The spelling of 2002662261 in words is "two billion, two million, six hundred sixty-two thousand, two hundred sixty-one".