42887910 has 64 divisors (see below), whose sum is σ = 111529152. Its totient is φ = 10492416.

The previous prime is 42887909. The next prime is 42887917. The reversal of 42887910 is 1978824.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42887917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107832 + ... + 108228.

It is an arithmetic number, because the mean of its divisors is an integer number (1742643).

Almost surely, 2^42887910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42887910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55764576).

42887910 is an abundant number, since it is smaller than the sum of its proper divisors (68641242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42887910 is a wasteful number, since it uses less digits than its factorization.

42887910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 42887910 is about 6548.8861648375. The cubic root of 42887910 is about 350.0351257264.

The spelling of 42887910 in words is "forty-two million, eight hundred eighty-seven thousand, nine hundred ten".