42087546 has 96 divisors (see below), whose sum is σ = 105338880. Its totient is φ = 12410496.

The previous prime is 42087541. The next prime is 42087587. The reversal of 42087546 is 64578024.

42087546 = T₂₉₁ + T₂₉₂ + ... + T₆₅₁.

It is a self number, because there is not a number n which added to its sum of digits gives 42087546.

It is not an unprimeable number, because it can be changed into a prime (42087541) 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 47 ways as a sum of consecutive naturals, for example, 331335 + ... + 331461.

It is an arithmetic number, because the mean of its divisors is an integer number (1097280).

Almost surely, 2^42087546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42087546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52669440).

42087546 is an abundant number, since it is smaller than the sum of its proper divisors (63251334).

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

42087546 is a wasteful number, since it uses less digits than its factorization.

42087546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 42087546 is about 6487.4915028846. The cubic root of 42087546 is about 347.8440145157.

The spelling of 42087546 in words is "forty-two million, eighty-seven thousand, five hundred forty-six".