290224028 has 24 divisors (see below), whose sum is σ = 542306688. Its totient is φ = 135572976.

The previous prime is 290224007. The next prime is 290224037. The reversal of 290224028 is 820422092.

It is a super-3 number, since 3×290224028³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32726 + ... + 40637.

It is an arithmetic number, because the mean of its divisors is an integer number (22596112).

Almost surely, 2^290224028 is an apocalyptic number.

It is an amenable number.

290224028 is a deficient number, since it is larger than the sum of its proper divisors (252082660).

290224028 is a wasteful number, since it uses less digits than its factorization.

290224028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73433 (or 73431 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 290224028 is about 17035.9627846506. The cubic root of 290224028 is about 662.0809951921.

The spelling of 290224028 in words is "two hundred ninety million, two hundred twenty-four thousand, twenty-eight".