42074538 has 32 divisors (see below), whose sum is σ = 92385792. Its totient is φ = 12668400.

The previous prime is 42074537. The next prime is 42074551. The reversal of 42074538 is 83547024.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42074499 and 42074508.

It is not an unprimeable number, because it can be changed into a prime (42074537) 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, 8803 + ... + 12713.

It is an arithmetic number, because the mean of its divisors is an integer number (2887056).

Almost surely, 2^42074538 is an apocalyptic number.

42074538 is an abundant number, since it is smaller than the sum of its proper divisors (50311254).

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

42074538 is a wasteful number, since it uses less digits than its factorization.

42074538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 42074538 is about 6486.4888807428. The cubic root of 42074538 is about 347.8081747673.

The spelling of 42074538 in words is "forty-two million, seventy-four thousand, five hundred thirty-eight".