4045290 has 64 divisors (see below), whose sum is σ = 10506240. Its totient is φ = 993600.

The previous prime is 4045289. The next prime is 4045291. The reversal of 4045290 is 925404.

It is an interprime number because it is at equal distance from previous prime (4045289) and next prime (4045291).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4045290.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26715 + ... + 26865.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

Almost surely, 2^4045290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4045290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5253120).

4045290 is an abundant number, since it is smaller than the sum of its proper divisors (6460950).

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

4045290 is a wasteful number, since it uses less digits than its factorization.

4045290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 4045290 is about 2011.2906304162. The cubic root of 4045290 is about 159.3369697802.

The spelling of 4045290 in words is "four million, forty-five thousand, two hundred ninety".