1215283200 has 360 divisors, whose sum is σ = 4290642048. Its totient is φ = 302776320.

The previous prime is 1215283189. The next prime is 1215283231. The reversal of 1215283200 is 23825121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28262379 + ... + 28262421.

Almost surely, 2^1215283200 is an apocalyptic number.

1215283200 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 1215283200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2145321024).

1215283200 is an abundant number, since it is smaller than the sum of its proper divisors (3075358848).

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

1215283200 is an equidigital number, since it uses as much as digits as its factorization.

1215283200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1215283200 is about 34860.9122083746. The cubic root of 1215283200 is about 1067.1508912590.

The spelling of 1215283200 in words is "one billion, two hundred fifteen million, two hundred eighty-three thousand, two hundred".