42005116 has 6 divisors (see below), whose sum is σ = 73508960. Its totient is φ = 21002556.

The previous prime is 42005081. The next prime is 42005167. The reversal of 42005116 is 61150024.

It is a junction number, because it is equal to n+sod(n) for n = 42005093 and 42005102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250636 + ... + 5250643.

Almost surely, 2^42005116 is an apocalyptic number.

It is an amenable number.

42005116 is a deficient number, since it is larger than the sum of its proper divisors (31503844).

42005116 is a wasteful number, since it uses less digits than its factorization.

42005116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501283 (or 10501281 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 42005116 is about 6481.1353943580. The cubic root of 42005116 is about 347.6167776873.

It can be divided in two parts, 4200 and 5116, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 42005116 in words is "forty-two million, five thousand, one hundred sixteen".