10442540 has 12 divisors (see below), whose sum is σ = 21929376. Its totient is φ = 4177008.

The previous prime is 10442519. The next prime is 10442557. The reversal of 10442540 is 4524401.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 522127 = 10442540 / (1 + 0 + 4 + 4 + 2 + 5 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261044 + ... + 261083.

It is an arithmetic number, because the mean of its divisors is an integer number (1827448).

Almost surely, 2^10442540 is an apocalyptic number.

10442540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10442540 is an abundant number, since it is smaller than the sum of its proper divisors (11486836).

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

10442540 is a wasteful number, since it uses less digits than its factorization.

10442540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522136 (or 522134 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10442540 is about 3231.4919155090. The cubic root of 10442540 is about 218.5757861899.

Adding to 10442540 its reverse (4524401), we get a palindrome (14966941).

The spelling of 10442540 in words is "ten million, four hundred forty-two thousand, five hundred forty".