42071418 has 24 divisors (see below), whose sum is σ = 91292448. Its totient is φ = 14002632.

The previous prime is 42071399. The next prime is 42071461. The reversal of 42071418 is 81417024.

It is a junction number, because it is equal to n+sod(n) for n = 42071391 and 42071400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14571 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (3803852).

Almost surely, 2^42071418 is an apocalyptic number.

42071418 is an abundant number, since it is smaller than the sum of its proper divisors (49221030).

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

42071418 is a wasteful number, since it uses less digits than its factorization.

42071418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 42071418 is about 6486.2483763729. The cubic root of 42071418 is about 347.7995774194.

It can be divided in two parts, 4207 and 1418, that added together give a square (5625 = 75²).

The spelling of 42071418 in words is "forty-two million, seventy-one thousand, four hundred eighteen".