42340818 has 16 divisors (see below), whose sum is σ = 91195776. Its totient is φ = 13027920.

The previous prime is 42340817. The next prime is 42340847. The reversal of 42340818 is 81804324.

It is not an unprimeable number, because it can be changed into a prime (42340811) 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, 271338 + ... + 271493.

It is an arithmetic number, because the mean of its divisors is an integer number (5699736).

Almost surely, 2^42340818 is an apocalyptic number.

42340818 is an abundant number, since it is smaller than the sum of its proper divisors (48854958).

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

42340818 is a wasteful number, since it uses less digits than its factorization.

42340818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542849.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 42340818 is about 6506.9822498605. The cubic root of 42340818 is about 348.5403647565.

The spelling of 42340818 in words is "forty-two million, three hundred forty thousand, eight hundred eighteen".