245340340 has 48 divisors (see below), whose sum is σ = 604743552. Its totient is φ = 81841536.

The previous prime is 245340323. The next prime is 245340367. The reversal of 245340340 is 43043542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18502 + ... + 28861.

It is an arithmetic number, because the mean of its divisors is an integer number (12598824).

Almost surely, 2^245340340 is an apocalyptic number.

245340340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245340340 is an abundant number, since it is smaller than the sum of its proper divisors (359403212).

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

245340340 is a wasteful number, since it uses less digits than its factorization.

245340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47416 (or 47414 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 245340340 is about 15663.3438320175. The cubic root of 245340340 is about 626.0220844383.

Adding to 245340340 its reverse (43043542), we get a palindrome (288383882).

The spelling of 245340340 in words is "two hundred forty-five million, three hundred forty thousand, three hundred forty".