1094990400 has 840 divisors, whose sum is σ = 4939076736. Its totient is φ = 232243200.

The previous prime is 1094990359. The next prime is 1094990459. The reversal of 1094990400 is 40994901.

It is a tau number, because it is divible by the number of its divisors (840).

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15422365 + ... + 15422435.

Almost surely, 2^1094990400 is an apocalyptic number.

1094990400 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 1094990400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2469538368).

1094990400 is an abundant number, since it is smaller than the sum of its proper divisors (3844086336).

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

1094990400 is a wasteful number, since it uses less digits than its factorization.

1094990400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 105 counting only the distinct ones).

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

The square root of 1094990400 is about 33090.6391597382. The cubic root of 1094990400 is about 1030.7106667437.

The spelling of 1094990400 in words is "one billion, ninety-four million, nine hundred ninety thousand, four hundred".