290500042 has 16 divisors (see below), whose sum is σ = 502571520. Its totient is φ = 123357168.

The previous prime is 290500037. The next prime is 290500057. The reversal of 290500042 is 240005092.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 290499986 and 290500022.

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 7 ways as a sum of consecutive naturals, for example, 93658 + ... + 96709.

It is an arithmetic number, because the mean of its divisors is an integer number (31410720).

Almost surely, 2^290500042 is an apocalyptic number.

290500042 is a deficient number, since it is larger than the sum of its proper divisors (212071478).

290500042 is a wasteful number, since it uses less digits than its factorization.

290500042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190485.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 290500042 is about 17044.0617811600. The cubic root of 290500042 is about 662.2908166917.

The spelling of 290500042 in words is "two hundred ninety million, five hundred thousand, forty-two".