1234144420 has 24 divisors (see below), whose sum is σ = 2615929344. Its totient is φ = 489043296.

The previous prime is 1234144409. The next prime is 1234144447. The reversal of 1234144420 is 244414321.

It is a super-2 number, since 2×1234144420² = 3046224898834272800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286212 + ... + 290491.

It is an arithmetic number, because the mean of its divisors is an integer number (108997056).

Almost surely, 2^1234144420 is an apocalyptic number.

1234144420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234144420 is an abundant number, since it is smaller than the sum of its proper divisors (1381784924).

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

1234144420 is a wasteful number, since it uses less digits than its factorization.

1234144420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576819 (or 576817 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1234144420 is about 35130.3916858324. The cubic root of 1234144420 is about 1072.6433088766.

Adding to 1234144420 its reverse (244414321), we get a palindrome (1478558741).

The spelling of 1234144420 in words is "one billion, two hundred thirty-four million, one hundred forty-four thousand, four hundred twenty".