1996681974 has 32 divisors (see below), whose sum is σ = 4570690560. Its totient is φ = 569624832.

The previous prime is 1996681961. The next prime is 1996681979. The reversal of 1996681974 is 4791866991.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996681979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7054 + ... + 63585.

It is an arithmetic number, because the mean of its divisors is an integer number (142834080).

Almost surely, 2^1996681974 is an apocalyptic number.

1996681974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1996681974 is an abundant number, since it is smaller than the sum of its proper divisors (2574008586).

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

1996681974 is a wasteful number, since it uses less digits than its factorization.

1996681974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71324.

The product of its digits is 5878656, while the sum is 60.

The square root of 1996681974 is about 44684.2474928246. The cubic root of 1996681974 is about 1259.2239224379.

The spelling of 1996681974 in words is "one billion, nine hundred ninety-six million, six hundred eighty-one thousand, nine hundred seventy-four".