1253300400 has 180 divisors, whose sum is σ = 4744841400. Its totient is φ = 303820800.

The previous prime is 1253300353. The next prime is 1253300417. The reversal of 1253300400 is 40033521.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23776 + ... + 55424.

It is an arithmetic number, because the mean of its divisors is an integer number (26360230).

Almost surely, 2^1253300400 is an apocalyptic number.

1253300400 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 1253300400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2372420700).

1253300400 is an abundant number, since it is smaller than the sum of its proper divisors (3491541000).

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

1253300400 is a wasteful number, since it uses less digits than its factorization.

1253300400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31684 (or 31670 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1253300400 is about 35401.9829953069. The cubic root of 1253300400 is about 1078.1645780052.

Adding to 1253300400 its reverse (40033521), we get a palindrome (1293333921).

The spelling of 1253300400 in words is "one billion, two hundred fifty-three million, three hundred thousand, four hundred".