434390 has 24 divisors (see below), whose sum is σ = 861840. Its totient is φ = 157520.

The previous prime is 434389. The next prime is 434407. The reversal of 434390 is 93434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1031 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁴³⁴³⁹⁰ is an apocalyptic number.

434390 is a deficient number, since it is larger than the sum of its proper divisors (427450).

434390 is a wasteful number, since it uses less digits than its factorization.

434390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 434390 is about 659.0826958736. The cubic root of 434390 is about 75.7344146248.

The spelling of 434390 in words is "four hundred thirty-four thousand, three hundred ninety".