290200381 has 4 divisors (see below), whose sum is σ = 291501952. Its totient is φ = 288898812.

The previous prime is 290200343. The next prime is 290200411. The reversal of 290200381 is 183002092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290200381 - 2¹⁷ = 290069309 is a prime.

It is a super-2 number, since 2×290200381² = 168432522265090322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290200481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650451 + ... + 650896.

It is an arithmetic number, because the mean of its divisors is an integer number (72875488).

Almost surely, 2^290200381 is an apocalyptic number.

It is an amenable number.

290200381 is a deficient number, since it is larger than the sum of its proper divisors (1301571).

290200381 is a wasteful number, since it uses less digits than its factorization.

290200381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301570.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 290200381 is about 17035.2687387079. The cubic root of 290200381 is about 662.0630129289.

The spelling of 290200381 in words is "two hundred ninety million, two hundred thousand, three hundred eighty-one".