290193641 has 4 divisors (see below), whose sum is σ = 290394000. Its totient is φ = 289993284.

The previous prime is 290193637. The next prime is 290193649. The reversal of 290193641 is 146391092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290193641 - 2² = 290193637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290193649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97991 + ... + 100908.

It is an arithmetic number, because the mean of its divisors is an integer number (72598500).

Almost surely, 2^290193641 is an apocalyptic number.

It is an amenable number.

290193641 is a deficient number, since it is larger than the sum of its proper divisors (200359).

290193641 is a wasteful number, since it uses less digits than its factorization.

290193641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200358.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 290193641 is about 17035.0709126789. The cubic root of 290193641 is about 662.0578873450.

The spelling of 290193641 in words is "two hundred ninety million, one hundred ninety-three thousand, six hundred forty-one".