42496542 has 64 divisors (see below), whose sum is σ = 106617600. Its totient is φ = 12428640.

The previous prime is 42496537. The next prime is 42496543. The reversal of 42496542 is 24569424.

42496542 is a `hidden beast` number, since 4 + 24 + 96 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 42496497 and 42496506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42496543) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 15993 + ... + 18459.

It is an arithmetic number, because the mean of its divisors is an integer number (1665900).

Almost surely, 2^42496542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42496542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53308800).

42496542 is an abundant number, since it is smaller than the sum of its proper divisors (64121058).

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

42496542 is a wasteful number, since it uses less digits than its factorization.

42496542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518 (or 2512 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 42496542 is about 6518.9371833145. The cubic root of 42496542 is about 348.9671372959.

The spelling of 42496542 in words is "forty-two million, four hundred ninety-six thousand, five hundred forty-two".