290040401 has 12 divisors (see below), whose sum is σ = 337216512. Its totient is φ = 244371864.

The previous prime is 290040391. The next prime is 290040427. The reversal of 290040401 is 104040092.

It is not a de Polignac number, because 290040401 - 2¹⁴ = 290024017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290040001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18416 + ... + 30318.

It is an arithmetic number, because the mean of its divisors is an integer number (28101376).

Almost surely, 2^290040401 is an apocalyptic number.

It is an amenable number.

290040401 is a deficient number, since it is larger than the sum of its proper divisors (47176111).

290040401 is an equidigital number, since it uses as much as digits as its factorization.

290040401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12028 (or 11969 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 290040401 is about 17030.5725388197. The cubic root of 290040401 is about 661.9413311339.

Adding to 290040401 its reverse (104040092), we get a palindrome (394080493).

The spelling of 290040401 in words is "two hundred ninety million, forty thousand, four hundred one".