10542220 has 36 divisors (see below), whose sum is σ = 23980320. Its totient is φ = 3891264.

The previous prime is 10542199. The next prime is 10542223. The reversal of 10542220 is 2224501.

It is a super-2 number, since 2×10542220² = 222276805056800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10542194 and 10542203.

It is not an unprimeable number, because it can be changed into a prime (10542223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1821 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (666120).

Almost surely, 2^10542220 is an apocalyptic number.

10542220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10542220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11990160).

10542220 is an abundant number, since it is smaller than the sum of its proper divisors (13438100).

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

10542220 is a wasteful number, since it uses less digits than its factorization.

10542220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 10542220 is about 3246.8785009606. The cubic root of 10542220 is about 219.2690617898.

Adding to 10542220 its reverse (2224501), we get a palindrome (12766721).

The spelling of 10542220 in words is "ten million, five hundred forty-two thousand, two hundred twenty".