4321290 has 32 divisors (see below), whose sum is σ = 10730880. Its totient is φ = 1112384.

The previous prime is 4321259. The next prime is 4321327. The reversal of 4321290 is 921234.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1614 + ... + 3353.

It is an arithmetic number, because the mean of its divisors is an integer number (335340).

Almost surely, 2^4321290 is an apocalyptic number.

4321290 is an abundant number, since it is smaller than the sum of its proper divisors (6409590).

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

4321290 is a wasteful number, since it uses less digits than its factorization.

4321290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4321290 is about 2078.7712716891. The cubic root of 4321290 is about 162.8812664876.

The spelling of 4321290 in words is "four million, three hundred twenty-one thousand, two hundred ninety".