3197012640 has 96 divisors (see below), whose sum is σ = 10395495936. Its totient is φ = 825031680.

The previous prime is 3197012591. The next prime is 3197012641. The reversal of 3197012640 is 462107913.

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

It is not an unprimeable number, because it can be changed into a prime (3197012641) 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, 92547 + ... + 122306.

It is an arithmetic number, because the mean of its divisors is an integer number (108286416).

Almost surely, 2^3197012640 is an apocalyptic number.

3197012640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3197012640 is an abundant number, since it is smaller than the sum of its proper divisors (7198483296).

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

3197012640 is a wasteful number, since it uses less digits than its factorization.

3197012640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214902 (or 214894 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 3197012640 is about 56542.1315480766. The cubic root of 3197012640 is about 1473.1538930040.

The spelling of 3197012640 in words is "three billion, one hundred ninety-seven million, twelve thousand, six hundred forty".