42684925 has 24 divisors (see below), whose sum is σ = 56524160. Its totient is φ = 31881600.

The previous prime is 42684919. The next prime is 42684931. The reversal of 42684925 is 52948624.

It is an interprime number because it is at equal distance from previous prime (42684919) and next prime (42684931).

It is not a de Polignac number, because 42684925 - 2⁵ = 42684893 is a prime.

It is a super-3 number, since 3×42684925³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34060 + ... + 35290.

Almost surely, 2^42684925 is an apocalyptic number.

It is an amenable number.

42684925 is a deficient number, since it is larger than the sum of its proper divisors (13839235).

42684925 is a wasteful number, since it uses less digits than its factorization.

42684925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1328 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 42684925 is about 6533.3701104407. The cubic root of 42684925 is about 349.4820229217.

The spelling of 42684925 in words is "forty-two million, six hundred eighty-four thousand, nine hundred twenty-five".