4072658 has 6 divisors (see below), whose sum is σ = 6113271. Its totient is φ = 2034902.

The previous prime is 4072637. The next prime is 4072661. The reversal of 4072658 is 8562704.

4072658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2036329 + 2036329 = 1427^2 + 1427^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1427.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 2141 + ... + 3567.

Almost surely, 2^4072658 is an apocalyptic number.

4072658 is a deficient number, since it is larger than the sum of its proper divisors (2040613).

4072658 is an frugal number, since it uses more digits than its factorization.

4072658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4072658 is about 2018.0827535064. The cubic root of 4072658 is about 159.6954885308.

Multiplying 4072658 by its sum of digits (32), we get a square (130325056 = 11416²).

The spelling of 4072658 in words is "four million, seventy-two thousand, six hundred fifty-eight".