290120993 has 8 divisors (see below), whose sum is σ = 296932608. Its totient is φ = 283359024.

The previous prime is 290120983. The next prime is 290121001. The reversal of 290120993 is 399021092.

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

It is a cyclic number.

It is not a de Polignac number, because 290120993 - 2²⁶ = 223012129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290120933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 24092.

It is an arithmetic number, because the mean of its divisors is an integer number (37116576).

Almost surely, 2^290120993 is an apocalyptic number.

It is an amenable number.

290120993 is a deficient number, since it is larger than the sum of its proper divisors (6811615).

290120993 is a wasteful number, since it uses less digits than its factorization.

290120993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24823.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 290120993 is about 17032.9384722660. The cubic root of 290120993 is about 662.0026355076.

The spelling of 290120993 in words is "two hundred ninety million, one hundred twenty thousand, nine hundred ninety-three".