291048472 has 32 divisors (see below), whose sum is σ = 641123280. Its totient is φ = 122117760.

The previous prime is 291048431. The next prime is 291048481. The reversal of 291048472 is 274840192.

291048472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126063 + ... + 128350.

Almost surely, 2^291048472 is an apocalyptic number.

291048472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

291048472 is an abundant number, since it is smaller than the sum of its proper divisors (350074808).

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

291048472 is a wasteful number, since it uses less digits than its factorization.

291048472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254443 (or 254439 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 291048472 is about 17060.1427895548. The cubic root of 291048472 is about 662.7073304808.

The spelling of 291048472 in words is "two hundred ninety-one million, forty-eight thousand, four hundred seventy-two".