42050040 has 64 divisors (see below), whose sum is σ = 132796800. Its totient is φ = 10622592.

The previous prime is 42050039. The next prime is 42050053. The reversal of 42050040 is 4005024.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6942 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (2074950).

Almost surely, 2^42050040 is an apocalyptic number.

42050040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42050040 is an abundant number, since it is smaller than the sum of its proper divisors (90746760).

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

42050040 is a wasteful number, since it uses less digits than its factorization.

42050040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18476 (or 18472 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 42050040 is about 6484.6002189803. The cubic root of 42050040 is about 347.7406576155.

Adding to 42050040 its reverse (4005024), we get a palindrome (46055064).

The spelling of 42050040 in words is "forty-two million, fifty thousand, forty", and thus it is an eban number.