899726400 has 336 divisors, whose sum is σ = 3344875200. Its totient is φ = 235192320.

The previous prime is 899726371. The next prime is 899726407. The reversal of 899726400 is 4627998.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (899726407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2548624 + ... + 2548976.

Almost surely, 2^899726400 is an apocalyptic number.

899726400 is a gapful number since it is divisible by the number (80) 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 899726400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672437600).

899726400 is an abundant number, since it is smaller than the sum of its proper divisors (2445148800).

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

899726400 is a wasteful number, since it uses less digits than its factorization.

899726400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 899726400 is about 29995.4396533873. The cubic root of 899726400 is about 965.3915384322.

The spelling of 899726400 in words is "eight hundred ninety-nine million, seven hundred twenty-six thousand, four hundred".