42086040 has 64 divisors (see below), whose sum is σ = 126696960. Its totient is φ = 11184000.

The previous prime is 42086017. The next prime is 42086041. The reversal of 42086040 is 4068024.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42086040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42086041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55665 + ... + 56415.

It is an arithmetic number, because the mean of its divisors is an integer number (1979640).

Almost surely, 2^42086040 is an apocalyptic number.

42086040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42086040 is an abundant number, since it is smaller than the sum of its proper divisors (84610920).

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

42086040 is a wasteful number, since it uses less digits than its factorization.

42086040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42086040 is about 6487.3754323301. The cubic root of 42086040 is about 347.8398655502.

The spelling of 42086040 in words is "forty-two million, eighty-six thousand, forty".