2099400 has 48 divisors (see below), whose sum is σ = 6510000. Its totient is φ = 559680.

The previous prime is 2099393. The next prime is 2099411. The reversal of 2099400 is 49902.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1150 + ... + 2349.

It is an arithmetic number, because the mean of its divisors is an integer number (135625).

2^2099400 is an apocalyptic number.

2099400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2099400 is an abundant number, since it is smaller than the sum of its proper divisors (4410600).

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

2099400 is a wasteful number, since it uses less digits than its factorization.

2099400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518 (or 3509 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 2099400 is about 1448.9306401619. The cubic root of 2099400 is about 128.0457193450.

The spelling of 2099400 in words is "two million, ninety-nine thousand, four hundred".