40446725 has 24 divisors (see below), whose sum is σ = 57600480. Its totient is φ = 27864000.

The previous prime is 40446713. The next prime is 40446727. The reversal of 40446725 is 52764404.

It is not a de Polignac number, because 40446725 - 2¹² = 40442629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40446691 and 40446700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40446727) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1355 + ... + 9095.

It is an arithmetic number, because the mean of its divisors is an integer number (2400020).

Almost surely, 2^40446725 is an apocalyptic number.

It is an amenable number.

40446725 is a deficient number, since it is larger than the sum of its proper divisors (17153755).

40446725 is a wasteful number, since it uses less digits than its factorization.

40446725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781 (or 7776 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 40446725 is about 6359.7739739711. The cubic root of 40446725 is about 343.2636273062.

The spelling of 40446725 in words is "forty million, four hundred forty-six thousand, seven hundred twenty-five".