99941400 has 144 divisors (see below), whose sum is σ = 361539360. Its totient is φ = 24595200.

The previous prime is 99941321. The next prime is 99941447. The reversal of 99941400 is 414999.

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 35 ways as a sum of consecutive naturals, for example, 21265 + ... + 25535.

It is an arithmetic number, because the mean of its divisors is an integer number (2510690).

Almost surely, 2^99941400 is an apocalyptic number.

99941400 is a gapful number since it is divisible by the number (90) 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 99941400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180769680).

99941400 is an abundant number, since it is smaller than the sum of its proper divisors (261597960).

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

99941400 is a wasteful number, since it uses less digits than its factorization.

99941400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 99941400 is about 9997.0695706292. The cubic root of 99941400 is about 464.0681999436.

It can be divided in two parts, 9 and 9941400, that added together give a square (9941409 = 3153²).

The spelling of 99941400 in words is "ninety-nine million, nine hundred forty-one thousand, four hundred".