290696140 has 48 divisors (see below), whose sum is σ = 702342144. Its totient is φ = 99000000.

The previous prime is 290696123. The next prime is 290696167. The reversal of 290696140 is 41696092.

It is a self number, because there is not a number n which added to its sum of digits gives 290696140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14265 + ... + 28015.

It is an arithmetic number, because the mean of its divisors is an integer number (14632128).

Almost surely, 2^290696140 is an apocalyptic number.

290696140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290696140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351171072).

290696140 is an abundant number, since it is smaller than the sum of its proper divisors (411646004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290696140 is a wasteful number, since it uses less digits than its factorization.

290696140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918 (or 13916 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 290696140 is about 17049.8134887159. The cubic root of 290696140 is about 662.4398065639.

The spelling of 290696140 in words is "two hundred ninety million, six hundred ninety-six thousand, one hundred forty".