4072429 has 4 divisors (see below), whose sum is σ = 4095360. Its totient is φ = 4049500.

The previous prime is 4072427. The next prime is 4072433. The reversal of 4072429 is 9242704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4072429 - 2¹ = 4072427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4072397 and 4072406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11197 + ... + 11554.

It is an arithmetic number, because the mean of its divisors is an integer number (1023840).

Almost surely, 2^4072429 is an apocalyptic number.

It is an amenable number.

4072429 is a deficient number, since it is larger than the sum of its proper divisors (22931).

4072429 is a wasteful number, since it uses less digits than its factorization.

4072429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22930.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 4072429 is about 2018.0260156896. The cubic root of 4072429 is about 159.6924953216.

The spelling of 4072429 in words is "four million, seventy-two thousand, four hundred twenty-nine".