42486628 has 6 divisors (see below), whose sum is σ = 74351606. Its totient is φ = 21243312.

The previous prime is 42486617. The next prime is 42486659. The reversal of 42486628 is 82668424.

It can be written as a sum of positive squares in only one way, i.e., 42484324 + 2304 = 6518^2 + 48^2 .

It is a super-2 number, since 2×42486628² = 3610227117620768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5310825 + ... + 5310832.

Almost surely, 2^42486628 is an apocalyptic number.

It is an amenable number.

42486628 is a deficient number, since it is larger than the sum of its proper divisors (31864978).

42486628 is a wasteful number, since it uses less digits than its factorization.

42486628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10621661 (or 10621659 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 42486628 is about 6518.1767389355. The cubic root of 42486628 is about 348.9399983876.

The spelling of 42486628 in words is "forty-two million, four hundred eighty-six thousand, six hundred twenty-eight".