10019840 has 88 divisors (see below), whose sum is σ = 25546560. Its totient is φ = 3760128.

The previous prime is 10019839. The next prime is 10019909. The reversal of 10019840 is 4891001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97229 + ... + 97331.

Almost surely, 2^10019840 is an apocalyptic number.

10019840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10019840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12773280).

10019840 is an abundant number, since it is smaller than the sum of its proper divisors (15526720).

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

10019840 is a wasteful number, since it uses less digits than its factorization.

10019840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 10019840 is about 3165.4130852070. The cubic root of 10019840 is about 215.5858548277.

The spelling of 10019840 in words is "ten million, nineteen thousand, eight hundred forty".