4072146 has 64 divisors (see below), whose sum is σ = 9652608. Its totient is φ = 1133568.

The previous prime is 4072139. The next prime is 4072147. The reversal of 4072146 is 6412704.

4072146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4072147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49021 + ... + 49103.

It is an arithmetic number, because the mean of its divisors is an integer number (150822).

Almost surely, 2^4072146 is an apocalyptic number.

4072146 is the 1079-th nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4072146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4826304).

4072146 is an abundant number, since it is smaller than the sum of its proper divisors (5580462).

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

4072146 is a wasteful number, since it uses less digits than its factorization.

4072146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 4072146 is about 2017.9558964457. The cubic root of 4072146 is about 159.6887961351.

The spelling of 4072146 in words is "four million, seventy-two thousand, one hundred forty-six".