290424538 has 32 divisors (see below), whose sum is σ = 468720000. Its totient is φ = 134550720.

The previous prime is 290424529. The next prime is 290424539. The reversal of 290424538 is 835424092.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 290424497 and 290424506.

It is not an unprimeable number, because it can be changed into a prime (290424539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808803 + ... + 809161.

It is an arithmetic number, because the mean of its divisors is an integer number (14647500).

Almost surely, 2^290424538 is an apocalyptic number.

290424538 is a deficient number, since it is larger than the sum of its proper divisors (178295462).

290424538 is a wasteful number, since it uses less digits than its factorization.

290424538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 290424538 is about 17041.8466722360. The cubic root of 290424538 is about 662.2334329493.

The spelling of 290424538 in words is "two hundred ninety million, four hundred twenty-four thousand, five hundred thirty-eight".