10240140 has 24 divisors (see below), whose sum is σ = 28672560. Its totient is φ = 2730688.

The previous prime is 10240127. The next prime is 10240141. The reversal of 10240140 is 4104201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (10240141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85275 + ... + 85394.

It is an arithmetic number, because the mean of its divisors is an integer number (1194690).

Almost surely, 2^10240140 is an apocalyptic number.

10240140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10240140 is an abundant number, since it is smaller than the sum of its proper divisors (18432420).

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

10240140 is a wasteful number, since it uses less digits than its factorization.

10240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170681 (or 170679 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 10240140 is about 3200.0218749252. The cubic root of 10240140 is about 217.1543989545.

Adding to 10240140 its reverse (4104201), we get a palindrome (14344341).

The spelling of 10240140 in words is "ten million, two hundred forty thousand, one hundred forty".