4072491 has 8 divisors (see below), whose sum is σ = 6033360. Its totient is φ = 2714976.

The previous prime is 4072483. The next prime is 4072507. The reversal of 4072491 is 1942704.

It is a happy number.

4072491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4072491 - 2³ = 4072483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 150833 = 4072491 / (4 + 0 + 7 + 2 + 4 + 9 + 1).

It is not an unprimeable number, because it can be changed into a prime (4072091) 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 7 ways as a sum of consecutive naturals, for example, 75390 + ... + 75443.

It is an arithmetic number, because the mean of its divisors is an integer number (754170).

Almost surely, 2^4072491 is an apocalyptic number.

4072491 is a deficient number, since it is larger than the sum of its proper divisors (1960869).

4072491 is a wasteful number, since it uses less digits than its factorization.

4072491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150842 (or 150836 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 4072491 is about 2018.0413771774. The cubic root of 4072491 is about 159.6933057212.

The spelling of 4072491 in words is "four million, seventy-two thousand, four hundred ninety-one".