42887020 has 48 divisors (see below), whose sum is σ = 98977536. Its totient is φ = 15480000.

The previous prime is 42886999. The next prime is 42887021. The reversal of 42887020 is 2078824.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42887021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32575 + ... + 33865.

It is an arithmetic number, because the mean of its divisors is an integer number (2062032).

Almost surely, 2^42887020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42887020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49488768).

42887020 is an abundant number, since it is smaller than the sum of its proper divisors (56090516).

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

42887020 is a wasteful number, since it uses less digits than its factorization.

42887020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 42887020 is about 6548.8182139986. The cubic root of 42887020 is about 350.0327044270.

The spelling of 42887020 in words is "forty-two million, eight hundred eighty-seven thousand, twenty".