42663698 has 64 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 15590400.

The previous prime is 42663679. The next prime is 42663737. The reversal of 42663698 is 89636624.

It is a super-2 number, since 2×42663698² = 3640382254070408, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182990 + ... + 183222.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^42663698 is an apocalyptic number.

42663698 is a deficient number, since it is larger than the sum of its proper divisors (42250222).

42663698 is a wasteful number, since it uses less digits than its factorization.

42663698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323.

The product of its digits is 373248, while the sum is 44.

The square root of 42663698 is about 6531.7454022642. The cubic root of 42663698 is about 349.4240814278.

The spelling of 42663698 in words is "forty-two million, six hundred sixty-three thousand, six hundred ninety-eight".