10420242 has 72 divisors (see below), whose sum is σ = 25721136. Its totient is φ = 2805264.

The previous prime is 10420217. The next prime is 10420243. The reversal of 10420242 is 24202401.

It is not an unprimeable number, because it can be changed into a prime (10420243) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 155493 + ... + 155559.

It is an arithmetic number, because the mean of its divisors is an integer number (357238).

Almost surely, 2^10420242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10420242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12860568).

10420242 is an abundant number, since it is smaller than the sum of its proper divisors (15300894).

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

10420242 is a wasteful number, since it uses less digits than its factorization.

10420242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 10420242 is about 3228.0399625779. The cubic root of 10420242 is about 218.4201000567.

Adding to 10420242 its reverse (24202401), we get a palindrome (34622643).

The spelling of 10420242 in words is "ten million, four hundred twenty thousand, two hundred forty-two".