42700518 has 24 divisors (see below), whose sum is σ = 105734928. Its totient is φ = 12200112.

The previous prime is 42700517. The next prime is 42700531. The reversal of 42700518 is 81500724.

It is a junction number, because it is equal to n+sod(n) for n = 42700491 and 42700500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42700517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169321 + ... + 169572.

It is an arithmetic number, because the mean of its divisors is an integer number (4405622).

Almost surely, 2^42700518 is an apocalyptic number.

42700518 is an abundant number, since it is smaller than the sum of its proper divisors (63034410).

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

42700518 is a wasteful number, since it uses less digits than its factorization.

42700518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338908 (or 338905 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 42700518 is about 6534.5633365972. The cubic root of 42700518 is about 349.5245735391.

The spelling of 42700518 in words is "forty-two million, seven hundred thousand, five hundred eighteen".