290390016 has 136 divisors (see below), whose sum is σ = 889185664. Its totient is φ = 82575360.

The previous prime is 290390011. The next prime is 290390027. The reversal of 290390016 is 610093092.

It is a super-2 number, since 2×290390016² = 168652722784960512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290390011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376151 + ... + 1376361.

Almost surely, 2^290390016 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 290390016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444592832).

290390016 is an abundant number, since it is smaller than the sum of its proper divisors (598795648).

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

290390016 is an frugal number, since it uses more digits than its factorization.

290390016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 290390016 is about 17040.8337824180. The cubic root of 290390016 is about 662.2071925948.

The spelling of 290390016 in words is "two hundred ninety million, three hundred ninety thousand, sixteen".