425444530 has 32 divisors (see below), whose sum is σ = 878866560. Its totient is φ = 145255680.

The previous prime is 425444491. The next prime is 425444531. The reversal of 425444530 is 35444524.

It is a junction number, because it is equal to n+sod(n) for n = 425444492 and 425444501.

It is not an unprimeable number, because it can be changed into a prime (425444531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4261 + ... + 29479.

It is an arithmetic number, because the mean of its divisors is an integer number (27464580).

Almost surely, 2^425444530 is an apocalyptic number.

425444530 is an abundant number, since it is smaller than the sum of its proper divisors (453422030).

425444530 is a wasteful number, since it uses less digits than its factorization.

425444530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25474.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 425444530 is about 20626.3067464828. The cubic root of 425444530 is about 752.1093390605.

It can be divided in two parts, 42544 and 4530, that added together give a palindrome (47074).

The spelling of 425444530 in words is "four hundred twenty-five million, four hundred forty-four thousand, five hundred thirty".