20342000 has 80 divisors (see below), whose sum is σ = 56252352. Its totient is φ = 6969600.

The previous prime is 20341999. The next prime is 20342009. The reversal of 20342000 is 24302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342009) 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, 13274 + ... + 14726.

Almost surely, 2^20342000 is an apocalyptic number.

20342000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20342000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28126176).

20342000 is an abundant number, since it is smaller than the sum of its proper divisors (35910352).

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

20342000 is a wasteful number, since it uses less digits than its factorization.

20342000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20342000 is about 4510.2106380966. The cubic root of 20342000 is about 272.9802433967.

Adding to 20342000 its reverse (24302), we get a palindrome (20366302).

The spelling of 20342000 in words is "twenty million, three hundred forty-two thousand".