11890022400 has 720 divisors, whose sum is σ = 45712386720. Its totient is φ = 3052339200.

The previous prime is 11890022363. The next prime is 11890022423. The reversal of 11890022400 is 422009811.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 194918370 + ... + 194918430.

It is an arithmetic number, because the mean of its divisors is an integer number (63489426).

Almost surely, 2^11890022400 is an apocalyptic number.

11890022400 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 11890022400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22856193360).

11890022400 is an abundant number, since it is smaller than the sum of its proper divisors (33822364320).

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

11890022400 is an equidigital number, since it uses as much as digits as its factorization.

11890022400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 11890022400 in words is "eleven billion, eight hundred ninety million, twenty-two thousand, four hundred".