290870422 has 8 divisors (see below), whose sum is σ = 436498272. Its totient is φ = 145371000.

The previous prime is 290870417. The next prime is 290870467. The reversal of 290870422 is 224078092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26229 + ... + 35632.

It is an arithmetic number, because the mean of its divisors is an integer number (54562284).

Almost surely, 2^290870422 is an apocalyptic number.

290870422 is a deficient number, since it is larger than the sum of its proper divisors (145627850).

290870422 is a wasteful number, since it uses less digits than its factorization.

290870422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64214.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 290870422 is about 17054.9236878973. The cubic root of 290870422 is about 662.5721650118.

The spelling of 290870422 in words is "two hundred ninety million, eight hundred seventy thousand, four hundred twenty-two".