20610942 has 64 divisors (see below), whose sum is σ = 47001600. Its totient is φ = 5971680.

The previous prime is 20610929. The next prime is 20610943. The reversal of 20610942 is 24901602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20610943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260859 + ... + 260937.

It is an arithmetic number, because the mean of its divisors is an integer number (734400).

Almost surely, 2^20610942 is an apocalyptic number.

20610942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20610942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23500800).

20610942 is an abundant number, since it is smaller than the sum of its proper divisors (26390658).

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

20610942 is a wasteful number, since it uses less digits than its factorization.

20610942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20610942 is about 4539.9275324613. The cubic root of 20610942 is about 274.1780060576.

The spelling of 20610942 in words is "twenty million, six hundred ten thousand, nine hundred forty-two".