10216542 has 32 divisors (see below), whose sum is σ = 23899392. Its totient is φ = 2850624.

The previous prime is 10216537. The next prime is 10216543. The reversal of 10216542 is 24561201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10216543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023 + ... + 4634.

It is an arithmetic number, because the mean of its divisors is an integer number (746856).

Almost surely, 2^10216542 is an apocalyptic number.

10216542 is an abundant number, since it is smaller than the sum of its proper divisors (13682850).

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

10216542 is a wasteful number, since it uses less digits than its factorization.

10216542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 10216542 is about 3196.3325859491. The cubic root of 10216542 is about 216.9874627314.

Adding to 10216542 its reverse (24561201), we get a palindrome (34777743).

The spelling of 10216542 in words is "ten million, two hundred sixteen thousand, five hundred forty-two".