42201887 has 24 divisors (see below), whose sum is σ = 53491536. Its totient is φ = 32997888.

The previous prime is 42201853. The next prime is 42201889. The reversal of 42201887 is 78810224.

It is not a de Polignac number, because 42201887 - 2¹⁴ = 42185503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42201889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61448 + ... + 62130.

It is an arithmetic number, because the mean of its divisors is an integer number (2228814).

Almost surely, 2^42201887 is an apocalyptic number.

42201887 is a deficient number, since it is larger than the sum of its proper divisors (11289649).

42201887 is a wasteful number, since it uses less digits than its factorization.

42201887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 42201887 is about 6496.2979457534. The cubic root of 42201887 is about 348.1587304907.

The spelling of 42201887 in words is "forty-two million, two hundred one thousand, eight hundred eighty-seven".