424204025 has 36 divisors (see below), whose sum is σ = 633045420. Its totient is φ = 280828800.

The previous prime is 424204007. The next prime is 424204037. The reversal of 424204025 is 520402424.

It can be written as a sum of positive squares in 6 ways, for example, as 26759929 + 397444096 = 5173^2 + 19936^2 .

It is not a de Polignac number, because 424204025 - 2²⁴ = 407426809 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29555 + ... + 41495.

It is an arithmetic number, because the mean of its divisors is an integer number (17584595).

Almost surely, 2^424204025 is an apocalyptic number.

It is an amenable number.

424204025 is a deficient number, since it is larger than the sum of its proper divisors (208841395).

424204025 is a wasteful number, since it uses less digits than its factorization.

424204025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11994 (or 11982 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 424204025 is about 20596.2138510941. The cubic root of 424204025 is about 751.3776309243.

Adding to 424204025 its reverse (520402424), we get a palindrome (944606449).

The spelling of 424204025 in words is "four hundred twenty-four million, two hundred four thousand, twenty-five".