2124423400 has 48 divisors (see below), whose sum is σ = 5388315840. Its totient is φ = 772516800.

The previous prime is 2124423349. The next prime is 2124423409. The reversal of 2124423400 is 43244212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2124423409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480624 + ... + 485023.

It is an arithmetic number, because the mean of its divisors is an integer number (112256580).

Almost surely, 2^2124423400 is an apocalyptic number.

2124423400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124423400 is an abundant number, since it is smaller than the sum of its proper divisors (3263892440).

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

2124423400 is a wasteful number, since it uses less digits than its factorization.

2124423400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965674 (or 965665 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2124423400 is about 46091.4677570589. The cubic root of 2124423400 is about 1285.5245023815.

Adding to 2124423400 its reverse (43244212), we get a palindrome (2167667612).

It can be divided in two parts, 21244 and 23400, that added together give a palindrome (44644).

The spelling of 2124423400 in words is "two billion, one hundred twenty-four million, four hundred twenty-three thousand, four hundred".