245445340 has 24 divisors (see below), whose sum is σ = 589069152. Its totient is φ = 84152640.

The previous prime is 245445331. The next prime is 245445349. The reversal of 245445340 is 43544542.

245445340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (245445331) and next prime (245445349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245445349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876451 + ... + 876730.

It is an arithmetic number, because the mean of its divisors is an integer number (24544548).

Almost surely, 2^245445340 is an apocalyptic number.

245445340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245445340 is an abundant number, since it is smaller than the sum of its proper divisors (343623812).

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

245445340 is a wasteful number, since it uses less digits than its factorization.

245445340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753197 (or 1753195 counting only the distinct ones).

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

The square root of 245445340 is about 15666.6952482009. The cubic root of 245445340 is about 626.1113793660. Note that the first 3 decimals are identical.

Adding to 245445340 its reverse (43544542), we get a palindrome (288989882).

The spelling of 245445340 in words is "two hundred forty-five million, four hundred forty-five thousand, three hundred forty".