2280042981 has 6 divisors (see below), whose sum is σ = 3293395430. Its totient is φ = 1520028648.

The previous prime is 2280042953. The next prime is 2280043027. The reversal of 2280042981 is 1892400822.

2280042981 is a `hidden beast` number, since 228 + 0 + 0 + 429 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1621350756 + 658692225 = 40266^2 + 25665^2 .

It is not a de Polignac number, because 2280042981 - 2⁵ = 2280042949 is a prime.

It is a super-2 number, since 2×2280042981² = 10397191990414732722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2280042911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126669046 + ... + 126669063.

Almost surely, 2^2280042981 is an apocalyptic number.

It is an amenable number.

2280042981 is a deficient number, since it is larger than the sum of its proper divisors (1013352449).

2280042981 is a wasteful number, since it uses less digits than its factorization.

2280042981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253338115 (or 253338112 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2280042981 is about 47749.7956121280. The cubic root of 2280042981 is about 1316.1771435013.

The spelling of 2280042981 in words is "two billion, two hundred eighty million, forty-two thousand, nine hundred eighty-one".