4145072 has 40 divisors (see below), whose sum is σ = 8487552. Its totient is φ = 1958400.

The previous prime is 4145069. The next prime is 4145111. The reversal of 4145072 is 2705414.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30188 + ... + 30324.

Almost surely, 2^4145072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4145072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4243776).

4145072 is an abundant number, since it is smaller than the sum of its proper divisors (4342480).

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

4145072 is a wasteful number, since it uses less digits than its factorization.

4145072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4145072 is about 2035.9449894337. The cubic root of 4145072 is about 160.6364235089.

The spelling of 4145072 in words is "four million, one hundred forty-five thousand, seventy-two".