10345840 has 40 divisors (see below), whose sum is σ = 24373440. Its totient is φ = 4083456.

The previous prime is 10345799. The next prime is 10345859. The reversal of 10345840 is 4854301.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5502 + ... + 7138.

It is an arithmetic number, because the mean of its divisors is an integer number (609336).

Almost surely, 2^10345840 is an apocalyptic number.

10345840 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 10345840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12186720).

10345840 is an abundant number, since it is smaller than the sum of its proper divisors (14027600).

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

10345840 is a wasteful number, since it uses less digits than its factorization.

10345840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 10345840 is about 3216.4949867830. The cubic root of 10345840 is about 217.8990077336.

The spelling of 10345840 in words is "ten million, three hundred forty-five thousand, eight hundred forty".