43725349 has 4 divisors (see below), whose sum is σ = 44442220. Its totient is φ = 43008480.

The previous prime is 43725347. The next prime is 43725361. The reversal of 43725349 is 94352734.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2122849 + 41602500 = 1457^2 + 6450^2 .

It is a cyclic number.

It is not a de Polignac number, because 43725349 - 2¹ = 43725347 is a prime.

It is a super-2 number, since 2×43725349² = 3823812290343602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43725347) 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, 358344 + ... + 358465.

It is an arithmetic number, because the mean of its divisors is an integer number (11110555).

Almost surely, 2^43725349 is an apocalyptic number.

It is an amenable number.

43725349 is a deficient number, since it is larger than the sum of its proper divisors (716871).

43725349 is an equidigital number, since it uses as much as digits as its factorization.

43725349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716870.

The product of its digits is 90720, while the sum is 37.

The square root of 43725349 is about 6612.5145746531. The cubic root of 43725349 is about 352.2987439939.

The spelling of 43725349 in words is "forty-three million, seven hundred twenty-five thousand, three hundred forty-nine".