1245162340 has 48 divisors (see below), whose sum is σ = 2779801920. Its totient is φ = 467164800.

The previous prime is 1245162323. The next prime is 1245162341. The reversal of 1245162340 is 432615421.

It is a junction number, because it is equal to n+sod(n) for n = 1245162299 and 1245162308.

It is not an unprimeable number, because it can be changed into a prime (1245162341) 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, 22159 + ... + 54601.

It is an arithmetic number, because the mean of its divisors is an integer number (57912540).

Almost surely, 2^1245162340 is an apocalyptic number.

1245162340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245162340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389900960).

1245162340 is an abundant number, since it is smaller than the sum of its proper divisors (1534639580).

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

1245162340 is a wasteful number, since it uses less digits than its factorization.

1245162340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32572 (or 32570 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1245162340 is about 35286.8578935558. The cubic root of 1245162340 is about 1075.8258920992.

Adding to 1245162340 its reverse (432615421), we get a palindrome (1677777761).

The spelling of 1245162340 in words is "one billion, two hundred forty-five million, one hundred sixty-two thousand, three hundred forty".