10287140 has 12 divisors (see below), whose sum is σ = 21603036. Its totient is φ = 4114848.

The previous prime is 10287107. The next prime is 10287157. The reversal of 10287140 is 4178201.

It can be written as a sum of positive squares in 2 ways, for example, as 7054336 + 3232804 = 2656^2 + 1798^2 .

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 3 ways as a sum of consecutive naturals, for example, 257159 + ... + 257198.

It is an arithmetic number, because the mean of its divisors is an integer number (1800253).

Almost surely, 2^10287140 is an apocalyptic number.

10287140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10287140 is an abundant number, since it is smaller than the sum of its proper divisors (11315896).

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

10287140 is a wasteful number, since it uses less digits than its factorization.

10287140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514366 (or 514364 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 10287140 is about 3207.3571675135. The cubic root of 10287140 is about 217.4861223365.

The spelling of 10287140 in words is "ten million, two hundred eighty-seven thousand, one hundred forty".