1974489696 has 144 divisors (see below), whose sum is σ = 6011486208. Its totient is φ = 636854400.

The previous prime is 1974489689. The next prime is 1974489721. The reversal of 1974489696 is 6969844791.

1974489696 is a `hidden beast` number, since 1 + 97 + 4 + 489 + 69 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1974489696² = 7797219119220344832, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 236961 + ... + 245151.

It is an arithmetic number, because the mean of its divisors is an integer number (41746432).

Almost surely, 2^1974489696 is an apocalyptic number.

1974489696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974489696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3005743104).

1974489696 is an abundant number, since it is smaller than the sum of its proper divisors (4036996512).

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

1974489696 is an equidigital number, since it uses as much as digits as its factorization.

1974489696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8247 (or 8227 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 1974489696 is about 44435.2303471018. The cubic root of 1974489696 is about 1254.5412832307.

The spelling of 1974489696 in words is "one billion, nine hundred seventy-four million, four hundred eighty-nine thousand, six hundred ninety-six".