10405140 has 96 divisors (see below), whose sum is σ = 30898560. Its totient is φ = 2612736.

The previous prime is 10405133. The next prime is 10405193. The reversal of 10405140 is 4150401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95406 + ... + 95514.

It is an arithmetic number, because the mean of its divisors is an integer number (321860).

Almost surely, 2^10405140 is an apocalyptic number.

10405140 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 10405140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15449280).

10405140 is an abundant number, since it is smaller than the sum of its proper divisors (20493420).

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

10405140 is a wasteful number, since it uses less digits than its factorization.

10405140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10405140 is about 3225.6999240475. The cubic root of 10405140 is about 218.3145306859.

Adding to 10405140 its reverse (4150401), we get a palindrome (14555541).

The spelling of 10405140 in words is "ten million, four hundred five thousand, one hundred forty".