4078290 has 32 divisors (see below), whose sum is σ = 9938880. Its totient is φ = 1070784.

The previous prime is 4078273. The next prime is 4078301. The reversal of 4078290 is 928704.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (310590).

Almost surely, 2^4078290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4969440).

4078290 is an abundant number, since it is smaller than the sum of its proper divisors (5860590).

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

4078290 is a wasteful number, since it uses less digits than its factorization.

4078290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 4078290 is about 2019.4776552366. The cubic root of 4078290 is about 159.7690678918.

The spelling of 4078290 in words is "four million, seventy-eight thousand, two hundred ninety".