10405998 has 24 divisors (see below), whose sum is σ = 22630608. Its totient is φ = 3455712.

The previous prime is 10405979. The next prime is 10406003. The reversal of 10405998 is 89950401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4711 + ... + 6557.

It is an arithmetic number, because the mean of its divisors is an integer number (942942).

Almost surely, 2^10405998 is an apocalyptic number.

10405998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10405998 is an abundant number, since it is smaller than the sum of its proper divisors (12224610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10405998 is a wasteful number, since it uses less digits than its factorization.

10405998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168 (or 2165 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 10405998 is about 3225.8329156979. The cubic root of 10405998 is about 218.3205312049.

The spelling of 10405998 in words is "ten million, four hundred five thousand, nine hundred ninety-eight".