1234421425 has 24 divisors (see below), whose sum is σ = 1658438496. Its totient is φ = 907818240.

The previous prime is 1234421387. The next prime is 1234421429. The reversal of 1234421425 is 5241244321.

It is not a de Polignac number, because 1234421425 - 2⁷ = 1234421297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234421393 and 1234421402.

It is not an unprimeable number, because it can be changed into a prime (1234421429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15499 + ... + 52048.

It is an arithmetic number, because the mean of its divisors is an integer number (69101604).

Almost surely, 2^1234421425 is an apocalyptic number.

It is an amenable number.

1234421425 is a deficient number, since it is larger than the sum of its proper divisors (424017071).

1234421425 is a wasteful number, since it uses less digits than its factorization.

1234421425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67617 (or 67612 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 1234421425 is about 35134.3339911261. Note that the first 3 decimals coincide. The cubic root of 1234421425 is about 1072.7235548423.

Adding to 1234421425 its reverse (5241244321), we get a palindrome (6475665746).

The spelling of 1234421425 in words is "one billion, two hundred thirty-four million, four hundred twenty-one thousand, four hundred twenty-five".