1199400804 has 192 divisors, whose sum is σ = 3654676480. Its totient is φ = 333123840.

The previous prime is 1199400751. The next prime is 1199400833. The reversal of 1199400804 is 4080049911.

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 63 ways as a sum of consecutive naturals, for example, 5684259 + ... + 5684469.

Almost surely, 2^1199400804 is an apocalyptic number.

1199400804 is a gapful number since it is divisible by the number (14) 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 1199400804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827338240).

1199400804 is an abundant number, since it is smaller than the sum of its proper divisors (2455275676).

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

1199400804 is a wasteful number, since it uses less digits than its factorization.

1199400804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1199400804 is about 34632.3664221780. The cubic root of 1199400804 is about 1062.4816673008.

The spelling of 1199400804 in words is "one billion, one hundred ninety-nine million, four hundred thousand, eight hundred four".