10409240 has 16 divisors (see below), whose sum is σ = 23420880. Its totient is φ = 4163680.

The previous prime is 10409233. The next prime is 10409249. The reversal of 10409240 is 4290401.

10409240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10409249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130076 + ... + 130155.

It is an arithmetic number, because the mean of its divisors is an integer number (1463805).

Almost surely, 2^10409240 is an apocalyptic number.

10409240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10409240 is an abundant number, since it is smaller than the sum of its proper divisors (13011640).

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

10409240 is a wasteful number, since it uses less digits than its factorization.

10409240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260242 (or 260238 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 10409240 is about 3226.3353824424. The cubic root of 10409240 is about 218.3432015171.

Adding to 10409240 its reverse (4290401), we get a palindrome (14699641).

The spelling of 10409240 in words is "ten million, four hundred nine thousand, two hundred forty".