291082434 has 16 divisors (see below), whose sum is σ = 607476672. Its totient is φ = 92808848.

The previous prime is 291082417. The next prime is 291082447. The reversal of 291082434 is 434280192.

It is a junction number, because it is equal to n+sod(n) for n = 291082395 and 291082404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054509 + ... + 1054784.

It is an arithmetic number, because the mean of its divisors is an integer number (37967292).

Almost surely, 2^291082434 is an apocalyptic number.

291082434 is an abundant number, since it is smaller than the sum of its proper divisors (316394238).

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

291082434 is a wasteful number, since it uses less digits than its factorization.

291082434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109321.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 291082434 is about 17061.1381214736. The cubic root of 291082434 is about 662.7331062458.

The spelling of 291082434 in words is "two hundred ninety-one million, eighty-two thousand, four hundred thirty-four".