230425640 has 32 divisors (see below), whose sum is σ = 532473480. Its totient is φ = 89678592.

The previous prime is 230425639. The next prime is 230425649. The reversal of 230425640 is 46524032.

It can be written as a sum of positive squares in 4 ways, for example, as 216031204 + 14394436 = 14698^2 + 3794^2 .

It is not an unprimeable number, because it can be changed into a prime (230425649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76367 + ... + 79326.

Almost surely, 2^230425640 is an apocalyptic number.

230425640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230425640 is an abundant number, since it is smaller than the sum of its proper divisors (302047840).

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

230425640 is a wasteful number, since it uses less digits than its factorization.

230425640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155741 (or 155737 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 230425640 is about 15179.7773369704. Note that the first 3 decimals coincide. The cubic root of 230425640 is about 613.0702860133.

Adding to 230425640 its reverse (46524032), we get a palindrome (276949672).

It can be divided in two parts, 23042 and 5640, that added together give a palindrome (28682).

The spelling of 230425640 in words is "two hundred thirty million, four hundred twenty-five thousand, six hundred forty".