4305990 has 64 divisors (see below), whose sum is σ = 11374272. Its totient is φ = 1036800.

The previous prime is 4305967. The next prime is 4306013. The reversal of 4305990 is 995034.

It is an interprime number because it is at equal distance from previous prime (4305967) and next prime (4306013).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23700 + ... + 23880.

It is an arithmetic number, because the mean of its divisors is an integer number (177723).

Almost surely, 2^4305990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4305990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5687136).

4305990 is an abundant number, since it is smaller than the sum of its proper divisors (7068282).

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

4305990 is a wasteful number, since it uses less digits than its factorization.

4305990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 4305990 is about 2075.0879499433. The cubic root of 4305990 is about 162.6888061851.

The spelling of 4305990 in words is "four million, three hundred five thousand, nine hundred ninety".