1974798720 has 96 divisors (see below), whose sum is σ = 6819246720. Its totient is φ = 526611456.

The previous prime is 1974798719. The next prime is 1974798731. The reversal of 1974798720 is 278974791.

1974798720 is a `hidden beast` number, since 1 + 97 + 479 + 87 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165664 + ... + 177183.

It is an arithmetic number, because the mean of its divisors is an integer number (71033820).

Almost surely, 2^1974798720 is an apocalyptic number.

1974798720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1974798720 is an abundant number, since it is smaller than the sum of its proper divisors (4844448000).

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

1974798720 is a wasteful number, since it uses less digits than its factorization.

1974798720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342872 (or 342857 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The square root of 1974798720 is about 44438.7074519500. The cubic root of 1974798720 is about 1254.6067285189.

The spelling of 1974798720 in words is "one billion, nine hundred seventy-four million, seven hundred ninety-eight thousand, seven hundred twenty".