424442025 has 96 divisors (see below), whose sum is σ = 902918400. Its totient is φ = 193855680.

The previous prime is 424441991. The next prime is 424442063. The reversal of 424442025 is 520244424.

It is not a de Polignac number, because 424442025 - 2⁸ = 424441769 is a prime.

It is a super-2 number, since 2×424442025² = 360302065172201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 424442025.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 382171 + ... + 383279.

It is an arithmetic number, because the mean of its divisors is an integer number (9405400).

Almost surely, 2^424442025 is an apocalyptic number.

424442025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424442025 is an abundant number, since it is smaller than the sum of its proper divisors (478476375).

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

424442025 is an equidigital number, since it uses as much as digits as its factorization.

424442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 424442025 is about 20601.9908018618. The cubic root of 424442025 is about 751.5181249886.

Adding to 424442025 its reverse (520244424), we get a palindrome (944686449).

The spelling of 424442025 in words is "four hundred twenty-four million, four hundred forty-two thousand, twenty-five".