42486890 has 8 divisors (see below), whose sum is σ = 76476420. Its totient is φ = 16994752.

The previous prime is 42486889. The next prime is 42486923. The reversal of 42486890 is 9868424.

It can be written as a sum of positive squares in 2 ways, for example, as 41460721 + 1026169 = 6439^2 + 1013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124335 + ... + 2124354.

Almost surely, 2^42486890 is an apocalyptic number.

42486890 is a deficient number, since it is larger than the sum of its proper divisors (33989530).

42486890 is a wasteful number, since it uses less digits than its factorization.

42486890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248696.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 42486890 is about 6518.1968365492. The cubic root of 42486890 is about 348.9407156493.

The spelling of 42486890 in words is "forty-two million, four hundred eighty-six thousand, eight hundred ninety".