291980046 has 8 divisors (see below), whose sum is σ = 583960104. Its totient is φ = 97326680.

The previous prime is 291980023. The next prime is 291980047. The reversal of 291980046 is 640089192.

It is a sphenic number, since it is the product of 3 distinct primes.

291980046 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 291979986 and 291980013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291980047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24331665 + ... + 24331676.

It is an arithmetic number, because the mean of its divisors is an integer number (72995013).

Almost surely, 2^291980046 is an apocalyptic number.

291980046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

291980046 is a wasteful number, since it uses less digits than its factorization.

291980046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48663346.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 291980046 is about 17087.4236208973. The cubic root of 291980046 is about 663.4136314051.

The spelling of 291980046 in words is "two hundred ninety-one million, nine hundred eighty thousand, forty-six".