1924401425 has 6 divisors (see below), whose sum is σ = 2386257798. Its totient is φ = 1539521120.

The previous prime is 1924401389. The next prime is 1924401449. The reversal of 1924401425 is 5241044291.

It is a Cunningham number, because it is equal to 43868²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 1924401424 = 1^2 + 43868^2 .

It is not a de Polignac number, because 1924401425 - 2⁶ = 1924401361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1924401391 and 1924401400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38488004 + ... + 38488053.

It is an arithmetic number, because the mean of its divisors is an integer number (397709633).

Almost surely, 2^1924401425 is an apocalyptic number.

It is an amenable number.

1924401425 is a deficient number, since it is larger than the sum of its proper divisors (461856373).

1924401425 is an equidigital number, since it uses as much as digits as its factorization.

1924401425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76976067 (or 76976062 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1924401425 is about 43868.0000113978. Note that the first 4 decimals coincide. The cubic root of 1924401425 is about 1243.8420172150.

The spelling of 1924401425 in words is "one billion, nine hundred twenty-four million, four hundred one thousand, four hundred twenty-five".