290542407 has 4 divisors (see below), whose sum is σ = 387389880. Its totient is φ = 193694936.

The previous prime is 290542397. The next prime is 290542429. The reversal of 290542407 is 704245092.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 290542407 - 2¹¹ = 290540359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290542457) 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, 48423732 + ... + 48423737.

It is an arithmetic number, because the mean of its divisors is an integer number (96847470).

Almost surely, 2^290542407 is an apocalyptic number.

290542407 is a deficient number, since it is larger than the sum of its proper divisors (96847473).

290542407 is an equidigital number, since it uses as much as digits as its factorization.

290542407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96847472.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 290542407 is about 17045.3045440673. The cubic root of 290542407 is about 662.3230101313.

Adding to 290542407 its reverse (704245092), we get a palindrome (994787499).

The spelling of 290542407 in words is "two hundred ninety million, five hundred forty-two thousand, four hundred seven".