290304434 has 16 divisors (see below), whose sum is σ = 505094208. Its totient is φ = 122558832.

The previous prime is 290304409. The next prime is 290304449. The reversal of 290304434 is 434403092.

It is a junction number, because it is equal to n+sod(n) for n = 290304397 and 290304406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153809 + ... + 155684.

It is an arithmetic number, because the mean of its divisors is an integer number (31568388).

Almost surely, 2^290304434 is an apocalyptic number.

290304434 is a deficient number, since it is larger than the sum of its proper divisors (214789774).

290304434 is a wasteful number, since it uses less digits than its factorization.

290304434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309569.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 290304434 is about 17038.3225113272. The cubic root of 290304434 is about 662.1421322952.

The spelling of 290304434 in words is "two hundred ninety million, three hundred four thousand, four hundred thirty-four".