290368434 has 16 divisors (see below), whose sum is σ = 581146272. Its totient is φ = 96721248.

The previous prime is 290368423. The next prime is 290368439. The reversal of 290368434 is 434863092.

It is a super-2 number, since 2×290368434² = 168627654927224712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 290368392 and 290368401.

It is not an unprimeable number, because it can be changed into a prime (290368439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7419 + ... + 25214.

It is an arithmetic number, because the mean of its divisors is an integer number (36321642).

Almost surely, 2^290368434 is an apocalyptic number.

290368434 is an abundant number, since it is smaller than the sum of its proper divisors (290777838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290368434 is a wasteful number, since it uses less digits than its factorization.

290368434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34121.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 290368434 is about 17040.2005269891. The cubic root of 290368434 is about 662.1907869462.

The spelling of 290368434 in words is "two hundred ninety million, three hundred sixty-eight thousand, four hundred thirty-four".