42140325 has 36 divisors (see below), whose sum is σ = 71301984. Its totient is φ = 21960000.

The previous prime is 42140321. The next prime is 42140327. The reversal of 42140325 is 52304124.

It is not a de Polignac number, because 42140325 - 2² = 42140321 is a prime.

It is a super-2 number, since 2×42140325² = 3551613982211250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 279000 + ... + 279150.

Almost surely, 2^42140325 is an apocalyptic number.

It is an amenable number.

42140325 is a deficient number, since it is larger than the sum of its proper divisors (29161659).

42140325 is a wasteful number, since it uses less digits than its factorization.

42140325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42140325 is about 6491.5579794068. The cubic root of 42140325 is about 347.9893559302.

Adding to 42140325 its reverse (52304124), we get a palindrome (94444449).

The spelling of 42140325 in words is "forty-two million, one hundred forty thousand, three hundred twenty-five".