3197399040 has 624 divisors, whose sum is σ = 12880183680. Its totient is φ = 725483520.

The previous prime is 3197399039. The next prime is 3197399041. The reversal of 3197399040 is 409937913.

It is an interprime number because it is at equal distance from previous prime (3197399039) and next prime (3197399041).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3197399041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38522839 + ... + 38522921.

It is an arithmetic number, because the mean of its divisors is an integer number (20641320).

Almost surely, 2^3197399040 is an apocalyptic number.

3197399040 is a gapful number since it is divisible by the number (30) 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 3197399040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6440091840).

3197399040 is an abundant number, since it is smaller than the sum of its proper divisors (9682784640).

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

3197399040 is a wasteful number, since it uses less digits than its factorization.

3197399040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 3197399040 is about 56545.5483658970. The cubic root of 3197399040 is about 1473.2132404633.

The spelling of 3197399040 in words is "three billion, one hundred ninety-seven million, three hundred ninety-nine thousand, forty".