290381052 has 24 divisors (see below), whose sum is σ = 729675856. Its totient is φ = 89347968.

The previous prime is 290381041. The next prime is 290381053. The reversal of 290381052 is 250183092.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290381053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930553 + ... + 930864.

Almost surely, 2^290381052 is an apocalyptic number.

It is an amenable number.

290381052 is an abundant number, since it is smaller than the sum of its proper divisors (439294804).

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

290381052 is a wasteful number, since it uses less digits than its factorization.

290381052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861437 (or 1861435 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 290381052 is about 17040.5707650888. The cubic root of 290381052 is about 662.2003786710.

The spelling of 290381052 in words is "two hundred ninety million, three hundred eighty-one thousand, fifty-two".