2042191530 has 24 divisors (see below), whose sum is σ = 5309698212. Its totient is φ = 544584384.

The previous prime is 2042191523. The next prime is 2042191577. The reversal of 2042191530 is 351912402.

2042191530 is a `hidden beast` number, since 2 + 0 + 42 + 1 + 91 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2027971089 + 14220441 = 45033^2 + 3771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2042191494 and 2042191503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11345419 + ... + 11345598.

Almost surely, 2^2042191530 is an apocalyptic number.

2042191530 is an abundant number, since it is smaller than the sum of its proper divisors (3267506682).

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

2042191530 is a wasteful number, since it uses less digits than its factorization.

2042191530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22691030 (or 22691027 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2042191530 is about 45190.6132952409. The cubic root of 2042191530 is about 1268.7191355867.

The spelling of 2042191530 in words is "two billion, forty-two million, one hundred ninety-one thousand, five hundred thirty".