290491080 has 192 divisors, whose sum is σ = 986644800. Its totient is φ = 67852800.

The previous prime is 290491079. The next prime is 290491147. The reversal of 290491080 is 80194092.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1268406 + ... + 1268634.

It is an arithmetic number, because the mean of its divisors is an integer number (5138775).

Almost surely, 2^290491080 is an apocalyptic number.

290491080 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 290491080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493322400).

290491080 is an abundant number, since it is smaller than the sum of its proper divisors (696153720).

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

290491080 is a wasteful number, since it uses less digits than its factorization.

290491080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 290491080 is about 17043.7988723172. The cubic root of 290491080 is about 662.2840060084.

The spelling of 290491080 in words is "two hundred ninety million, four hundred ninety-one thousand, eighty".