42487156 has 6 divisors (see below), whose sum is σ = 74352530. Its totient is φ = 21243576.

The previous prime is 42487147. The next prime is 42487169. The reversal of 42487156 is 65178424.

It can be written as a sum of positive squares in only one way, i.e., 42458256 + 28900 = 6516^2 + 170^2 .

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 as a sum of consecutive naturals, namely, 5310891 + ... + 5310898.

Almost surely, 2^42487156 is an apocalyptic number.

It is an amenable number.

42487156 is a deficient number, since it is larger than the sum of its proper divisors (31865374).

42487156 is a wasteful number, since it uses less digits than its factorization.

42487156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10621793 (or 10621791 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 42487156 is about 6518.2172409333. The cubic root of 42487156 is about 348.9414438585.

The spelling of 42487156 in words is "forty-two million, four hundred eighty-seven thousand, one hundred fifty-six".