20342260 has 24 divisors (see below), whose sum is σ = 43101576. Its totient is φ = 8064000.

The previous prime is 20342249. The next prime is 20342269. The reversal of 20342260 is 6224302.

It can be written as a sum of positive squares in 4 ways, for example, as 646416 + 19695844 = 804^2 + 4438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241 + ... + 6760.

It is an arithmetic number, because the mean of its divisors is an integer number (1795899).

Almost surely, 2^20342260 is an apocalyptic number.

20342260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20342260 is an abundant number, since it is smaller than the sum of its proper divisors (22759316).

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

20342260 is a wasteful number, since it uses less digits than its factorization.

20342260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9123 (or 9121 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20342260 is about 4510.2394614920. The cubic root of 20342260 is about 272.9814064184.

Adding to 20342260 its reverse (6224302), we get a palindrome (26566562).

It can be divided in two parts, 20342 and 260, that added together give a palindrome (20602).

The spelling of 20342260 in words is "twenty million, three hundred forty-two thousand, two hundred sixty".