40000425 has 48 divisors (see below), whose sum is σ = 69906240. Its totient is φ = 20151040.

The previous prime is 40000421. The next prime is 40000451. The reversal of 40000425 is 52400004.

40000425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40000425 - 2² = 40000421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (40000421) 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 47 ways as a sum of consecutive naturals, for example, 115102 + ... + 115448.

It is an arithmetic number, because the mean of its divisors is an integer number (1456380).

Almost surely, 2^40000425 is an apocalyptic number.

It is an amenable number.

40000425 is a deficient number, since it is larger than the sum of its proper divisors (29905815).

40000425 is a wasteful number, since it uses less digits than its factorization.

40000425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 40000425 is about 6324.5889194477. The cubic root of 40000425 is about 341.9964005640.

Adding to 40000425 its reverse (52400004), we get a palindrome (92400429).

The spelling of 40000425 in words is "forty million, four hundred twenty-five", and thus it is an aban number.