2340421020 has 96 divisors (see below), whose sum is σ = 8321510400. Its totient is φ = 534952512.

The previous prime is 2340421009. The next prime is 2340421021. The reversal of 2340421020 is 201240432.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2340420984 and 2340421002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340421021) 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, 305800 + ... + 313359.

It is an arithmetic number, because the mean of its divisors is an integer number (86682400).

Almost surely, 2^2340421020 is an apocalyptic number.

2340421020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2340421020 is an abundant number, since it is smaller than the sum of its proper divisors (5981089380).

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

2340421020 is a wasteful number, since it uses less digits than its factorization.

2340421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619184 (or 619176 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2340421020 is about 48377.8980527265. The cubic root of 2340421020 is about 1327.6940123092.

Adding to 2340421020 its reverse (201240432), we get a palindrome (2541661452).

The spelling of 2340421020 in words is "two billion, three hundred forty million, four hundred twenty-one thousand, twenty".