4018072 has 8 divisors (see below), whose sum is σ = 7533900. Its totient is φ = 2009032.

The previous prime is 4018061. The next prime is 4018081. The reversal of 4018072 is 2708104.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×4018072² = 32289805194368, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 251122 + ... + 251137.

Almost surely, 2^4018072 is an apocalyptic number.

It is an amenable number.

4018072 is a deficient number, since it is larger than the sum of its proper divisors (3515828).

4018072 is a wasteful number, since it uses less digits than its factorization.

4018072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502265 (or 502261 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 4018072 is about 2004.5129084144. The cubic root of 4018072 is about 158.9788086679.

The spelling of 4018072 in words is "four million, eighteen thousand, seventy-two".