40046425 has 6 divisors (see below), whose sum is σ = 49657598. Its totient is φ = 32037120.

The previous prime is 40046423. The next prime is 40046449. The reversal of 40046425 is 52464004.

40046425 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 3 ways, for example, as 5035536 + 35010889 = 2244^2 + 5917^2 .

It is not a de Polignac number, because 40046425 - 2¹ = 40046423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1601857 = 40046425 / (4 + 0 + 0 + 4 + 6 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40046425.

It is not an unprimeable number, because it can be changed into a prime (40046423) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 800904 + ... + 800953.

Almost surely, 2^40046425 is an apocalyptic number.

It is an amenable number.

40046425 is a deficient number, since it is larger than the sum of its proper divisors (9611173).

40046425 is a wasteful number, since it uses less digits than its factorization.

40046425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601867 (or 1601862 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 40046425 is about 6328.2244745268. The cubic root of 40046425 is about 342.1274475700.

The spelling of 40046425 in words is "forty million, forty-six thousand, four hundred twenty-five".