2236478400 has 378 divisors, whose sum is σ = 8616833160. Its totient is φ = 549918720.

The previous prime is 2236478399. The next prime is 2236478417. The reversal of 2236478400 is 48746322.

2236478400 is a `hidden beast` number, since 2 + 2 + 3 + 647 + 8 + 4 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 2433141 + ... + 2434059.

Almost surely, 2^2236478400 is an apocalyptic number.

2236478400 is a gapful number since it is divisible by the number (20) 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 2236478400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4308416580).

2236478400 is an abundant number, since it is smaller than the sum of its proper divisors (6380354760).

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

2236478400 is a wasteful number, since it uses less digits than its factorization.

2236478400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 2236478400 is about 47291.4199406192. The cubic root of 2236478400 is about 1307.7404866288.

The spelling of 2236478400 in words is "two billion, two hundred thirty-six million, four hundred seventy-eight thousand, four hundred".