2340400420 has 48 divisors (see below), whose sum is σ = 5212666368. Its totient is φ = 880767360.

The previous prime is 2340400399. The next prime is 2340400429. The reversal of 2340400420 is 240040432.

It is not an unprimeable number, because it can be changed into a prime (2340400429) 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, 13644 + ... + 69763.

It is an arithmetic number, because the mean of its divisors is an integer number (108597216).

Almost surely, 2^2340400420 is an apocalyptic number.

2340400420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2340400420 is an abundant number, since it is smaller than the sum of its proper divisors (2872265948).

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

2340400420 is a wasteful number, since it uses less digits than its factorization.

2340400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83500 (or 83498 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2340400420 is about 48377.6851451162. The cubic root of 2340400420 is about 1327.6901169165.

Adding to 2340400420 its reverse (240040432), we get a palindrome (2580440852).

The spelling of 2340400420 in words is "two billion, three hundred forty million, four hundred thousand, four hundred twenty".