40725443 has 4 divisors (see below), whose sum is σ = 44427768. Its totient is φ = 37023120.

The previous prime is 40725431. The next prime is 40725449. The reversal of 40725443 is 34452704.

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

It is a cyclic number.

It is not a de Polignac number, because 40725443 - 2⁴ = 40725427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40725449) 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, 1851146 + ... + 1851167.

It is an arithmetic number, because the mean of its divisors is an integer number (11106942).

Almost surely, 2^40725443 is an apocalyptic number.

40725443 is a deficient number, since it is larger than the sum of its proper divisors (3702325).

40725443 is a wasteful number, since it uses less digits than its factorization.

40725443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702324.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 40725443 is about 6381.6489248469. The cubic root of 40725443 is about 344.0502985538.

It can be divided in two parts, 407 and 25443, that multiplied together give a palindrome (10355301).

The spelling of 40725443 in words is "forty million, seven hundred twenty-five thousand, four hundred forty-three".