42686070 has 128 divisors (see below), whose sum is σ = 123863040. Its totient is φ = 9210240.

The previous prime is 42686047. The next prime is 42686071. The reversal of 42686070 is 7068624.

It is a super-3 number, since 3×42686070³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42686071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 514249 + ... + 514331.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^42686070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42686070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61931520).

42686070 is an abundant number, since it is smaller than the sum of its proper divisors (81176970).

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

42686070 is a wasteful number, since it uses less digits than its factorization.

42686070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 42686070 is about 6533.4577369108. The cubic root of 42686070 is about 349.4851477824.

The spelling of 42686070 in words is "forty-two million, six hundred eighty-six thousand, seventy".