42689995 has 8 divisors (see below), whose sum is σ = 51335280. Its totient is φ = 34080480.

The previous prime is 42689993. The next prime is 42690023. The reversal of 42689995 is 59998624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42689995 - 2¹ = 42689993 is a prime.

It is a super-3 number, since 3×42689995³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42689993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6240 + ... + 11149.

It is an arithmetic number, because the mean of its divisors is an integer number (6416910).

Almost surely, 2^42689995 is an apocalyptic number.

42689995 is a deficient number, since it is larger than the sum of its proper divisors (8645285).

42689995 is a wasteful number, since it uses less digits than its factorization.

42689995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17885.

The product of its digits is 1399680, while the sum is 52.

The square root of 42689995 is about 6533.7581069397. The cubic root of 42689995 is about 349.4958592172.

The spelling of 42689995 in words is "forty-two million, six hundred eighty-nine thousand, nine hundred ninety-five".