10999404 has 72 divisors (see below), whose sum is σ = 31544240. Its totient is φ = 3203712.

The previous prime is 10999399. The next prime is 10999427. The reversal of 10999404 is 40499901.

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 23 ways as a sum of consecutive naturals, for example, 8274 + ... + 9510.

Almost surely, 2^10999404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10999404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15772120).

10999404 is an abundant number, since it is smaller than the sum of its proper divisors (20544836).

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

10999404 is a wasteful number, since it uses less digits than its factorization.

10999404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1274 counting only the distinct ones).

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

The square root of 10999404 is about 3316.5349387576. The cubic root of 10999404 is about 222.3939923416.

The spelling of 10999404 in words is "ten million, nine hundred ninety-nine thousand, four hundred four".