42087536 has 10 divisors (see below), whose sum is σ = 81544632. Its totient is φ = 21043760.

The previous prime is 42087533. The next prime is 42087541. The reversal of 42087536 is 63578024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42087496 and 42087505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42087533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315220 + ... + 1315251.

Almost surely, 2^42087536 is an apocalyptic number.

It is an amenable number.

42087536 is a deficient number, since it is larger than the sum of its proper divisors (39457096).

42087536 is a wasteful number, since it uses less digits than its factorization.

42087536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630479 (or 2630473 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42087536 is about 6487.4907321706. The cubic root of 42087536 is about 347.8439869665.

The spelling of 42087536 in words is "forty-two million, eighty-seven thousand, five hundred thirty-six".