290940109 has 8 divisors (see below), whose sum is σ = 293642240. Its totient is φ = 288244656.

The previous prime is 290940101. The next prime is 290940119. The reversal of 290940109 is 901049092.

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 290940109 - 2³ = 290940101 is a prime.

It is a super-2 number, since 2×290940109² = 169292294049863762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290940101) 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, 134692 + ... + 136834.

It is an arithmetic number, because the mean of its divisors is an integer number (36705280).

Almost surely, 2^290940109 is an apocalyptic number.

It is an amenable number.

290940109 is a deficient number, since it is larger than the sum of its proper divisors (2702131).

290940109 is a wasteful number, since it uses less digits than its factorization.

290940109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 290940109 is about 17056.9665826020. The cubic root of 290940109 is about 662.6250740005.

The spelling of 290940109 in words is "two hundred ninety million, nine hundred forty thousand, one hundred nine".