291293042 has 8 divisors (see below), whose sum is σ = 440380416. Its totient is φ = 144499572.

The previous prime is 291293003. The next prime is 291293053. The reversal of 291293042 is 240392192.

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

It is a super-2 number, since 2×291293042² = 169703272635227528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573158 + ... + 573665.

It is an arithmetic number, because the mean of its divisors is an integer number (55047552).

Almost surely, 2^291293042 is an apocalyptic number.

291293042 is a deficient number, since it is larger than the sum of its proper divisors (149087374).

291293042 is a wasteful number, since it uses less digits than its factorization.

291293042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146952.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 291293042 is about 17067.3091610834. The cubic root of 291293042 is about 662.8929043286.

The spelling of 291293042 in words is "two hundred ninety-one million, two hundred ninety-three thousand, forty-two".