40419445 has 12 divisors (see below), whose sum is σ = 53314380. Its totient is φ = 29395520.

The previous prime is 40419413. The next prime is 40419461. The reversal of 40419445 is 54491404.

It can be written as a sum of positive squares in 2 ways, for example, as 7322436 + 33097009 = 2706^2 + 5753^2 .

It is not a de Polignac number, because 40419445 - 2⁵ = 40419413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32800 + ... + 34009.

It is an arithmetic number, because the mean of its divisors is an integer number (4442865).

Almost surely, 2^40419445 is an apocalyptic number.

It is an amenable number.

40419445 is a deficient number, since it is larger than the sum of its proper divisors (12894935).

40419445 is a wasteful number, since it uses less digits than its factorization.

40419445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66836 (or 66825 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40419445 is about 6357.6288819024. The cubic root of 40419445 is about 343.1864365668.

The spelling of 40419445 in words is "forty million, four hundred nineteen thousand, four hundred forty-five".