20616342 has 16 divisors (see below), whose sum is σ = 43658352. Its totient is φ = 6467840.

The previous prime is 20616331. The next prime is 20616373. The reversal of 20616342 is 24361602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100959 + ... + 101162.

It is an arithmetic number, because the mean of its divisors is an integer number (2728647).

Almost surely, 2^20616342 is an apocalyptic number.

20616342 is an abundant number, since it is smaller than the sum of its proper divisors (23042010).

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

20616342 is a wasteful number, since it uses less digits than its factorization.

20616342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202143.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20616342 is about 4540.5222166619. The cubic root of 20616342 is about 274.2019485497.

Adding to 20616342 its reverse (24361602), we get a palindrome (44977944).

The spelling of 20616342 in words is "twenty million, six hundred sixteen thousand, three hundred forty-two".