4120290 has 48 divisors (see below), whose sum is σ = 11347128. Its totient is φ = 1033728.

The previous prime is 4120279. The next prime is 4120301. The reversal of 4120290 is 920214.

It is an interprime number because it is at equal distance from previous prime (4120279) and next prime (4120301).

It can be written as a sum of positive squares in 4 ways, for example, as 3606201 + 514089 = 1899^2 + 717^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184 + ... + 2876.

Almost surely, 2^4120290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4120290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5673564).

4120290 is an abundant number, since it is smaller than the sum of its proper divisors (7226838).

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

4120290 is a wasteful number, since it uses less digits than its factorization.

4120290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4120290 is about 2029.8497481341. The cubic root of 4120290 is about 160.3156529024.

The spelling of 4120290 in words is "four million, one hundred twenty thousand, two hundred ninety".