1999416 has 32 divisors (see below), whose sum is σ = 5034240. Its totient is φ = 661728.

The previous prime is 1999379. The next prime is 1999423. The reversal of 1999416 is 6149991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5265 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (157320).

2^1999416 is an apocalyptic number.

It is an amenable number.

1999416 is an abundant number, since it is smaller than the sum of its proper divisors (3034824).

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

1999416 is a wasteful number, since it uses less digits than its factorization.

1999416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 599 counting only the distinct ones).

The product of its digits is 17496, while the sum is 39.

The square root of 1999416 is about 1414.0070721181. The cubic root of 1999416 is about 125.9798405641.

It can be divided in two parts, 1999 and 416, that added together give a triangular number (2415 = T₆₉).

The spelling of 1999416 in words is "one million, nine hundred ninety-nine thousand, four hundred sixteen".