4425729 has 64 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 2069760.

The previous prime is 4425721. The next prime is 4425737. The reversal of 4425729 is 9275244.

It is an interprime number because it is at equal distance from previous prime (4425721) and next prime (4425737).

It is not a de Polignac number, because 4425729 - 2³ = 4425721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 4425729.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4425721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 192412 + ... + 192434.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

Almost surely, 2^4425729 is an apocalyptic number.

4425729 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4425729 is a deficient number, since it is larger than the sum of its proper divisors (3868671).

4425729 is a wasteful number, since it uses less digits than its factorization.

4425729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 61 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 4425729 is about 2103.7416666502. The cubic root of 4425729 is about 164.1830323153.

The spelling of 4425729 in words is "four million, four hundred twenty-five thousand, seven hundred twenty-nine".