20342210 has 32 divisors (see below), whose sum is σ = 42446592. Its totient is φ = 6874560.

The previous prime is 20342209. The next prime is 20342213. The reversal of 20342210 is 1224302.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (20342213) 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, 2924 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (1326456).

Almost surely, 2^20342210 is an apocalyptic number.

20342210 is an abundant number, since it is smaller than the sum of its proper divisors (22104382).

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

20342210 is a wasteful number, since it uses less digits than its factorization.

20342210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20342210 is about 4510.2339185457. The cubic root of 20342210 is about 272.9811827611.

Adding to 20342210 its reverse (1224302), we get a palindrome (21566512).

The spelling of 20342210 in words is "twenty million, three hundred forty-two thousand, two hundred ten".