40446425 has 12 divisors (see below), whose sum is σ = 50233020. Its totient is φ = 32305920.

The previous prime is 40446409. The next prime is 40446433. The reversal of 40446425 is 52464404.

It is a happy number.

40446425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1708249 + 38738176 = 1307^2 + 6224^2 .

It is not a de Polignac number, because 40446425 - 2⁴ = 40446409 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27509 + ... + 28941.

It is an arithmetic number, because the mean of its divisors is an integer number (4186085).

Almost surely, 2^40446425 is an apocalyptic number.

It is an amenable number.

40446425 is a deficient number, since it is larger than the sum of its proper divisors (9786595).

40446425 is a wasteful number, since it uses less digits than its factorization.

40446425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2567 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 40446425 is about 6359.7503881835. The cubic root of 40446425 is about 343.2627786232.

The spelling of 40446425 in words is "forty million, four hundred forty-six thousand, four hundred twenty-five".