290647872 has 224 divisors, whose sum is σ = 912936960. Its totient is φ = 90478080.

The previous prime is 290647871. The next prime is 290647891. The reversal of 290647872 is 278746092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290647871) 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 31 ways as a sum of consecutive naturals, for example, 2821773 + ... + 2821875.

Almost surely, 2^290647872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290647872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456468480).

290647872 is an abundant number, since it is smaller than the sum of its proper divisors (622289088).

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

290647872 is a wasteful number, since it uses less digits than its factorization.

290647872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 290647872 is about 17048.3979305975. The cubic root of 290647872 is about 662.4031400817.

The spelling of 290647872 in words is "two hundred ninety million, six hundred forty-seven thousand, eight hundred seventy-two".