290572240 has 80 divisors (see below), whose sum is σ = 774628992. Its totient is φ = 99297792.

The previous prime is 290572237. The next prime is 290572241. The reversal of 290572240 is 42275092.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290572241) 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 15 ways as a sum of consecutive naturals, for example, 221667 + ... + 222973.

Almost surely, 2^290572240 is an apocalyptic number.

290572240 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 290572240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387314496).

290572240 is an abundant number, since it is smaller than the sum of its proper divisors (484056752).

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

290572240 is a wasteful number, since it uses less digits than its factorization.

290572240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 290572240 is about 17046.1796306386. The cubic root of 290572240 is about 662.3456785446.

The spelling of 290572240 in words is "two hundred ninety million, five hundred seventy-two thousand, two hundred forty".