1974816 has 36 divisors (see below), whose sum is σ = 5616702. Its totient is φ = 658176.

The previous prime is 1974787. The next prime is 1974851. The reversal of 1974816 is 6184791.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 3600 = 1404^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3141 + ... + 3716.

2^1974816 is an apocalyptic number.

1974816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1974816 is an abundant number, since it is smaller than the sum of its proper divisors (3641886).

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

1974816 is a wasteful number, since it uses less digits than its factorization.

1974816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6873 (or 6862 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 1974816 is about 1405.2814664686. The cubic root of 1974816 is about 125.4610387886.

The spelling of 1974816 in words is "one million, nine hundred seventy-four thousand, eight hundred sixteen".