42631895 has 8 divisors (see below), whose sum is σ = 51195456. Its totient is φ = 34080736.

The previous prime is 42631891. The next prime is 42631909. The reversal of 42631895 is 59813624.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42631895 - 2² = 42631891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42631891) 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, 8249 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (6399432).

Almost surely, 2^42631895 is an apocalyptic number.

42631895 is a deficient number, since it is larger than the sum of its proper divisors (8563561).

42631895 is a wasteful number, since it uses less digits than its factorization.

42631895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6201.

The product of its digits is 51840, while the sum is 38.

The square root of 42631895 is about 6529.3104536390. The cubic root of 42631895 is about 349.3372355690.

The spelling of 42631895 in words is "forty-two million, six hundred thirty-one thousand, eight hundred ninety-five".