290648674 has 4 divisors (see below), whose sum is σ = 435973014. Its totient is φ = 145324336.

The previous prime is 290648647. The next prime is 290648689. The reversal of 290648674 is 476846092.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 246333025 + 44315649 = 15695^2 + 6657^2 .

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 as a sum of consecutive naturals, namely, 72662167 + ... + 72662170.

Almost surely, 2^290648674 is an apocalyptic number.

290648674 is a deficient number, since it is larger than the sum of its proper divisors (145324340).

290648674 is a wasteful number, since it uses less digits than its factorization.

290648674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145324339.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 290648674 is about 17048.4214518530. The cubic root of 290648674 is about 662.4037493491.

The spelling of 290648674 in words is "two hundred ninety million, six hundred forty-eight thousand, six hundred seventy-four".