40654445 has 16 divisors (see below), whose sum is σ = 53533872. Its totient is φ = 29452800.

The previous prime is 40654441. The next prime is 40654451. The reversal of 40654445 is 54445604.

It can be written as a sum of positive squares in 8 ways, for example, as 749956 + 39904489 = 866^2 + 6317^2 .

It is not a de Polignac number, because 40654445 - 2² = 40654441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40654441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2456 + ... + 9345.

It is an arithmetic number, because the mean of its divisors is an integer number (3345867).

Almost surely, 2^40654445 is an apocalyptic number.

It is an amenable number.

40654445 is a deficient number, since it is larger than the sum of its proper divisors (12879427).

40654445 is a wasteful number, since it uses less digits than its factorization.

40654445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 40654445 is about 6376.0838294364. The cubic root of 40654445 is about 343.8502508703.

The spelling of 40654445 in words is "forty million, six hundred fifty-four thousand, four hundred forty-five".