42867690 has 16 divisors (see below), whose sum is σ = 102882528. Its totient is φ = 11431376.

The previous prime is 42867683. The next prime is 42867697. The reversal of 42867690 is 9676824.

It is an interprime number because it is at equal distance from previous prime (42867683) and next prime (42867697).

It is a super-2 number, since 2×42867690² = 3675277691872200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42867697) 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, 714432 + ... + 714491.

It is an arithmetic number, because the mean of its divisors is an integer number (6430158).

Almost surely, 2^42867690 is an apocalyptic number.

42867690 is an abundant number, since it is smaller than the sum of its proper divisors (60014838).

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

42867690 is a wasteful number, since it uses less digits than its factorization.

42867690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428933.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 42867690 is about 6547.3422088661. The cubic root of 42867690 is about 349.9801077130.

The spelling of 42867690 in words is "forty-two million, eight hundred sixty-seven thousand, six hundred ninety".