3490306656 has 48 divisors (see below), whose sum is σ = 9180183600. Its totient is φ = 1161133568.

The previous prime is 3490306619. The next prime is 3490306657. The reversal of 3490306656 is 6566030943.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3490306657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13150 + ... + 84578.

It is an arithmetic number, because the mean of its divisors is an integer number (191253825).

Almost surely, 2^3490306656 is an apocalyptic number.

It is an amenable number.

3490306656 is an abundant number, since it is smaller than the sum of its proper divisors (5689876944).

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

3490306656 is a wasteful number, since it uses less digits than its factorization.

3490306656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71951 (or 71943 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

The square root of 3490306656 is about 59078.8173205930. The cubic root of 3490306656 is about 1516.8915375199.

The spelling of 3490306656 in words is "three billion, four hundred ninety million, three hundred six thousand, six hundred fifty-six".