1245323400 has 48 divisors (see below), whose sum is σ = 3860504400. Its totient is φ = 332086080.

The previous prime is 1245323383. The next prime is 1245323407. The reversal of 1245323400 is 43235421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1245323407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1037170 + ... + 1038369.

It is an arithmetic number, because the mean of its divisors is an integer number (80427175).

Almost surely, 2^1245323400 is an apocalyptic number.

1245323400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245323400 is an abundant number, since it is smaller than the sum of its proper divisors (2615181000).

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

1245323400 is a wasteful number, since it uses less digits than its factorization.

1245323400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075558 (or 2075549 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1245323400 is about 35289.1399725185. The cubic root of 1245323400 is about 1075.8722756221.

Adding to 1245323400 its reverse (43235421), we get a palindrome (1288558821).

It can be divided in two parts, 12453 and 23400, that added together give a palindrome (35853).

The spelling of 1245323400 in words is "one billion, two hundred forty-five million, three hundred twenty-three thousand, four hundred".