3497016640 has 112 divisors (see below), whose sum is σ = 8995044240. Its totient is φ = 1287290880.

The previous prime is 3497016629. The next prime is 3497016697. The reversal of 3497016640 is 466107943.

It can be written as a sum of positive squares in 8 ways, for example, as 391406656 + 3105609984 = 19784^2 + 55728^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 3497016593 and 3497016602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617160 + ... + 1619320.

It is an arithmetic number, because the mean of its divisors is an integer number (80312895).

Almost surely, 2^3497016640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3497016640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4497522120).

3497016640 is an abundant number, since it is smaller than the sum of its proper divisors (5498027600).

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

3497016640 is a wasteful number, since it uses less digits than its factorization.

3497016640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580 (or 2570 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 3497016640 is about 59135.5784617010. The cubic root of 3497016640 is about 1517.8629710192.

The spelling of 3497016640 in words is "three billion, four hundred ninety-seven million, sixteen thousand, six hundred forty".